Sustainable Kibana Architecture: Move modules owned by @elastic/streams-program-team (#203180)

## Summary

This PR aims at relocating some of the Kibana modules (plugins and
packages) into a new folder structure, according to the _Sustainable
Kibana Architecture_ initiative.

> [!IMPORTANT]
> * We kindly ask you to:
> * Manually fix the errors in the error section below (if there are
any).
> * Search for the `packages[\/\\]` and `plugins[\/\\]` patterns in the
source code (Babel and Eslint config files), and update them
appropriately.
> * Manually review
`.buildkite/scripts/pipelines/pull_request/pipeline.ts` to ensure that
any CI pipeline customizations continue to be correctly applied after
the changed path names
> * Review all of the updated files, specially the `.ts` and `.js` files
listed in the sections below, as some of them contain relative paths
that have been updated.
> * Think of potential impact of the move, including tooling and
configuration files that can be pointing to the relocated modules. E.g.:
>     * customised eslint rules
>     * docs pointing to source code

> [!NOTE]
> This PR has been auto-generated.
> Do not attempt to push any changes unless you know what you are doing.
> Please use
[#sustainable_kibana_architecture](https://elastic.slack.com/archives/C07TCKTA22E)
Slack channel for feedback.




#### 2 plugin(s) are going to be relocated:

| Id | Target folder |
| -- | ------------- |
| `@kbn/streams-app-plugin` |
`x-pack/solutions/observability/plugins/streams_app` |
| `@kbn/streams-plugin` |
`x-pack/solutions/observability/plugins/streams` |


<details>
<summary>Updated references</summary>

```
./docs/developer/plugin-list.asciidoc
./package.json
./packages/kbn-repo-packages/package-map.json
./packages/kbn-ts-projects/config-paths.json
./tsconfig.base.json
./x-pack/.i18nrc.json
./x-pack/solutions/observability/plugins/streams/jest.config.js
./x-pack/solutions/observability/plugins/streams_app/jest.config.js
./yarn.lock
```
</details>
<details>
<summary>Updated relative paths</summary>

```
x-pack/solutions/observability/plugins/streams/jest.config.js:10
x-pack/solutions/observability/plugins/streams/tsconfig.json:2
x-pack/solutions/observability/plugins/streams/tsconfig.json:7
x-pack/solutions/observability/plugins/streams_app/jest.config.js:10
x-pack/solutions/observability/plugins/streams_app/tsconfig.json:2
x-pack/solutions/observability/plugins/streams_app/tsconfig.json:7
```
</details>
<details>
<summary>Script errors</summary>

```

```
</details>

.github/CODEOWNERS

@@ -986,8 +986,6 @@ x-pack/plugins/snapshot_restore @elastic/kibana-management
 x-pack/plugins/spaces @elastic/kibana-security
 x-pack/plugins/stack_alerts @elastic/response-ops
 x-pack/plugins/stack_connectors @elastic/response-ops
-x-pack/plugins/streams @elastic/streams-program-team
-x-pack/plugins/streams_app @elastic/streams-program-team
 x-pack/plugins/task_manager @elastic/response-ops
 x-pack/plugins/telemetry_collection_xpack @elastic/kibana-core
 x-pack/plugins/threat_intelligence @elastic/security-threat-hunting-investigations
@@ -997,6 +995,8 @@ x-pack/plugins/upgrade_assistant @elastic/kibana-management
 x-pack/plugins/watcher @elastic/kibana-management
 x-pack/solutions/observability/plugins/observability_solution/entities_data_access @elastic/obs-entities
 x-pack/solutions/observability/plugins/observability_solution/entity_manager_app @elastic/obs-entities
+x-pack/solutions/observability/plugins/streams @elastic/streams-program-team
+x-pack/solutions/observability/plugins/streams_app @elastic/streams-program-team
 x-pack/test
 x-pack/test_serverless
 x-pack/test/alerting_api_integration/common/plugins/aad @elastic/response-ops

docs/developer/plugin-list.asciidoc

@@ -917,11 +917,11 @@ routes, etc.
 |The stack_connectors plugin provides connector types shipped with Kibana, built on top of the framework provided in the actions plugin.
 
 
-|{kib-repo}blob/{branch}/x-pack/plugins/streams/README.md[streams]
+|{kib-repo}blob/{branch}/x-pack/solutions/observability/plugins/streams/README.md[streams]
 |This plugin provides an interface to manage streams
 
 
-|{kib-repo}blob/{branch}/x-pack/plugins/streams_app/README.md[streamsApp]
+|{kib-repo}blob/{branch}/x-pack/solutions/observability/plugins/streams_app/README.md[streamsApp]
 |Home of the Streams app plugin, which allows users to manage Streams via the UI.
 
 

package.json

@@ -941,8 +941,8 @@
     "@kbn/status-plugin-a-plugin": "link:test/server_integration/plugins/status_plugin_a",
     "@kbn/status-plugin-b-plugin": "link:test/server_integration/plugins/status_plugin_b",
     "@kbn/std": "link:packages/kbn-std",
-    "@kbn/streams-app-plugin": "link:x-pack/plugins/streams_app",
-    "@kbn/streams-plugin": "link:x-pack/plugins/streams",
+    "@kbn/streams-app-plugin": "link:x-pack/solutions/observability/plugins/streams_app",
+    "@kbn/streams-plugin": "link:x-pack/solutions/observability/plugins/streams",
     "@kbn/synthetics-plugin": "link:x-pack/plugins/observability_solution/synthetics",
     "@kbn/synthetics-private-location": "link:x-pack/packages/kbn-synthetics-private-location",
     "@kbn/task-manager-fixture-plugin": "link:x-pack/test/alerting_api_integration/common/plugins/task_manager_fixture",

tsconfig.base.json

@@ -1866,10 +1866,10 @@
       "@kbn/stdio-dev-helpers/*": ["packages/kbn-stdio-dev-helpers/*"],
       "@kbn/storybook": ["packages/kbn-storybook"],
       "@kbn/storybook/*": ["packages/kbn-storybook/*"],
-      "@kbn/streams-app-plugin": ["x-pack/plugins/streams_app"],
-      "@kbn/streams-app-plugin/*": ["x-pack/plugins/streams_app/*"],
-      "@kbn/streams-plugin": ["x-pack/plugins/streams"],
-      "@kbn/streams-plugin/*": ["x-pack/plugins/streams/*"],
+      "@kbn/streams-app-plugin": ["x-pack/solutions/observability/plugins/streams_app"],
+      "@kbn/streams-app-plugin/*": ["x-pack/solutions/observability/plugins/streams_app/*"],
+      "@kbn/streams-plugin": ["x-pack/solutions/observability/plugins/streams"],
+      "@kbn/streams-plugin/*": ["x-pack/solutions/observability/plugins/streams/*"],
       "@kbn/synthetics-e2e": ["x-pack/plugins/observability_solution/synthetics/e2e"],
       "@kbn/synthetics-e2e/*": ["x-pack/plugins/observability_solution/synthetics/e2e/*"],
       "@kbn/synthetics-plugin": ["x-pack/plugins/observability_solution/synthetics"],

x-pack/.i18nrc.json

@@ -151,7 +151,7 @@
     "xpack.securitySolutionServerless": "plugins/security_solution_serverless",
     "xpack.sessionView": "plugins/session_view",
     "xpack.streams": [
-      "plugins/streams_app"
+      "solutions/observability/plugins/streams_app"
     ],
     "xpack.slo": "plugins/observability_solution/slo",
     "xpack.snapshotRestore": "plugins/snapshot_restore",

x-pack/plugins/streams/jest.config.js

@@ -1,15 +0,0 @@
-/*
- * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
- * or more contributor license agreements. Licensed under the Elastic License
- * 2.0; you may not use this file except in compliance with the Elastic License
- * 2.0.
- */
-
-module.exports = {
-  preset: '@kbn/test',
-  rootDir: '../../..',
-  roots: ['<rootDir>/x-pack/plugins/streams'],
-  coverageDirectory: '<rootDir>/target/kibana-coverage/jest/x-pack/plugins/streams',
-  coverageReporters: ['text', 'html'],
-  collectCoverageFrom: ['<rootDir>/x-pack/plugins/streams/{common,public,server}/**/*.{js,ts,tsx}'],
-};

x-pack/plugins/streams_app/jest.config.js

@@ -1,23 +0,0 @@
-/*
- * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
- * or more contributor license agreements. Licensed under the Elastic License
- * 2.0; you may not use this file except in compliance with the Elastic License
- * 2.0.
- */
-
-module.exports = {
-  preset: '@kbn/test',
-  rootDir: '../../..',
-  roots: [
-    '<rootDir>/x-pack/plugins/streams_app/public',
-    '<rootDir>/x-pack/plugins/streams_app/common',
-    '<rootDir>/x-pack/plugins/streams_app/server',
-  ],
-  setupFiles: ['<rootDir>/x-pack/plugins/streams_app/.storybook/jest_setup.js'],
-  collectCoverage: true,
-  collectCoverageFrom: [
-    '<rootDir>/x-pack/plugins/streams_app/{public,common,server}/**/*.{js,ts,tsx}',
-  ],
-
-  coverageReporters: ['html'],
-};

x-pack/solutions/observability/plugins/streams/jest.config.js

@@ -0,0 +1,18 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+module.exports = {
+  preset: '@kbn/test',
+  rootDir: '../../../../..',
+  roots: ['<rootDir>/x-pack/solutions/observability/plugins/streams'],
+  coverageDirectory:
+    '<rootDir>/target/kibana-coverage/jest/x-pack/solutions/observability/plugins/streams',
+  coverageReporters: ['text', 'html'],
+  collectCoverageFrom: [
+    '<rootDir>/x-pack/solutions/observability/plugins/streams/{common,public,server}/**/*.{js,ts,tsx}',
+  ],
+};

x-pack/solutions/observability/plugins/streams/tsconfig.json

@@ -1,10 +1,10 @@
 {
-  "extends": "../../../tsconfig.base.json",
+  "extends": "../../../../../tsconfig.base.json",
   "compilerOptions": {
     "outDir": "target/types"
   },
   "include": [
-    "../../../typings/**/*",
+    "../../../../../typings/**/*",
     "common/**/*",
     "server/**/*",
     "public/**/*",

x-pack/solutions/observability/plugins/streams_app/jest.config.js

@@ -0,0 +1,25 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+module.exports = {
+  preset: '@kbn/test',
+  rootDir: '../../../../..',
+  roots: [
+    '<rootDir>/x-pack/solutions/observability/plugins/streams_app/public',
+    '<rootDir>/x-pack/solutions/observability/plugins/streams_app/common',
+    '<rootDir>/x-pack/solutions/observability/plugins/streams_app/server',
+  ],
+  setupFiles: [
+    '<rootDir>/x-pack/solutions/observability/plugins/streams_app/.storybook/jest_setup.js',
+  ],
+  collectCoverage: true,
+  collectCoverageFrom: [
+    '<rootDir>/x-pack/solutions/observability/plugins/streams_app/{public,common,server}/**/*.{js,ts,tsx}',
+  ],
+
+  coverageReporters: ['html'],
+};