[APM] Update .NET Agent instructions (#42124) (#42152)

* Update src/legacy/core_plugins/kibana/server/tutorials/apm/instructions/apm_agent_instructions.js

.NET Agent:
- removed beta warning
- updated the text with the updated pacakge and `UseAllElasticApm()` method
- fixed 1 minor typo

* Update translations files

src/legacy/core_plugins/kibana/server/tutorials/apm/instructions/apm_agent_instructions.js

@@ -472,17 +472,16 @@ export const createDotNetAgentInstructions = (apmServerUrl = '', secretToken = '
       defaultMessage: 'Download the APM agent',
     }),
     textPre: i18n.translate('kbn.server.tutorials.apm.dotNetClient.download.textPre', {
-      defaultMessage: '**Warning: The .NET agent is currently in Beta and not meant for production use.** \n\n \
-      Add the the agent package(s) from [NuGet]({allNuGetPacakgesLink}) to your .NET application. There are multiple \
-      NuGet packages available for different use cases. \n\n  For an ASP.NET Core application with Entity Framework \
-      Core download the [Elastic.Apm.All]({allApmPackageLink}) package. This package will automatically add every agent component to \
-      your application. \n\n In case you would like to to minimize the dependencies, you can use the \
+      defaultMessage: 'Add the the agent package(s) from [NuGet]({allNuGetPackagesLink}) to your .NET application. There are multiple \
+      NuGet packages available for different use cases. \n\nFor an ASP.NET Core application with Entity Framework \
+      Core download the [Elastic.Apm.NetCoreAll]({netCoreAllApmPackageLink}) package. This package will automatically add every \
+      agent component to your application. \n\n In case you would like to to minimize the dependencies, you can use the \
       [Elastic.Apm.AspNetCore]({aspNetCorePackageLink}) package for just \
       ASP.NET Core monitoring or the [Elastic.Apm.EfCore]({efCorePackageLink}) package for just Entity Framework Core monitoring. \n\n \
       In case you only want to use the public Agent API for manual instrumentation use the [Elastic.Apm]({elasticApmPackageLink}) package.',
       values: {
-        allNuGetPacakgesLink: 'https://www.nuget.org/packages?q=Elastic.apm',
-        allApmPackageLink: 'https://www.nuget.org/packages/Elastic.Apm.All',
+        allNuGetPackagesLink: 'https://www.nuget.org/packages?q=Elastic.apm',
+        netCoreAllApmPackageLink: 'https://www.nuget.org/packages/Elastic.Apm.NetCoreAll',
         aspNetCorePackageLink: 'https://www.nuget.org/packages/Elastic.Apm.AspNetCore',
         efCorePackageLink: 'https://www.nuget.org/packages/Elastic.Apm.EntityFrameworkCore',
         elasticApmPackageLink: 'https://www.nuget.org/packages/Elastic.Apm',
@@ -494,13 +493,14 @@ export const createDotNetAgentInstructions = (apmServerUrl = '', secretToken = '
       defaultMessage: 'Add the agent to the application',
     }),
     textPre: i18n.translate('kbn.server.tutorials.apm.dotNetClient.configureApplication.textPre', {
-      defaultMessage: 'In case of ASP.NET Core, call the `UseElasticApm` method in the `Configure` method within the `Startup.cs` file.'
+      defaultMessage: 'In case of ASP.NET Core with the `Elastic.Apm.NetCoreAll` package, call the `UseAllElasticApm` \
+      method in the `Configure` method within the `Startup.cs` file.'
     }),
     commands: `public class Startup
 {curlyOpen}
   public void Configure(IApplicationBuilder app, IHostingEnvironment env)
   {curlyOpen}
-    app.UseElasticApm(Configuration);
+    app.UseAllElasticApm(Configuration);
     //…rest of the method
   {curlyClose}
   //…rest of the class
@@ -515,8 +515,7 @@ export const createDotNetAgentInstructions = (apmServerUrl = '', secretToken = '
       defaultMessage: 'Sample appsettings.json file:',
     }),
     commands: `{curlyOpen}
-  "ElasticApm": {curlyOpen}
-    "LogLevel": "Error",
+    "ElasticApm": {curlyOpen}
     "SecretToken": "${secretToken}",
     "ServerUrls": "${apmServerUrl || 'http://localhost:8200'}", //Set custom APM Server URL (default: http://localhost:8200)
     "ServiceName" : "MyApp", //allowed characters: a-z, A-Z, 0-9, -, _, and space. Default is the entry assembly of the application

x-pack/plugins/translations/translations/ja-JP.json

@@ -2114,7 +2114,6 @@
     "kbn.server.tutorials.apm.dotNetClient.configureApplication.textPost": "「IConfiguration」インスタンスを渡すのはオプションで、これにより、エージェントはこの「IConfiguration」インスタンス (例: 「appsettings.json」ファイル) から構成を読み込みます。",
     "kbn.server.tutorials.apm.dotNetClient.configureApplication.textPre": "ASP.NET Core の場合、「Startup.cs」ファイル内の「Configure」メソドの「UseElasticApm」メソドを呼び出します。",
     "kbn.server.tutorials.apm.dotNetClient.configureApplication.title": "エージェントをアプリケーションに追加",
-    "kbn.server.tutorials.apm.dotNetClient.download.textPre": "**警告:.NET エージェントは現在ベータで、本番向けではありません。** \n\n       [NuGet]({allNuGetPacakgesLink}) から .NET アプリケーションにエージェントパッケージを追加してください。用途の異なる複数の NuGet パッケージがあります。\n\n  Entity Framework Core の ASP.NET Core アプリケーションの場合は、[Elastic.Apm.All]({allApmPackageLink}) パッケージをダウンロードしてください。このパッケージは、自動的にすべてのエージェントコンポーネントをアプリケーションに追加します。\n\n 依存性を最低限に抑えたい場合、ASP.NET Core の監視のみに [Elastic.Apm.AspNetCore]({aspNetCorePackageLink}) パッケージ、または Entity Framework Core の監視のみに [Elastic.Apm.EfCore]({efCorePackageLink}) パッケージを使用することができます。\n\n       手動インストルメンテーションのみにパブリック Agent API を使用する場合は、[Elastic.Apm]({elasticApmPackageLink}) パッケージを使用してください。",
     "kbn.server.tutorials.apm.dotNetClient.download.title": "APM エージェントのダウンロード",
     "kbn.server.tutorials.apm.downloadServer.title": "APM Server をダウンロードして展開します",
     "kbn.server.tutorials.apm.downloadServerRpm": "32 ビットパッケージをお探しですか？[ダウンロードページ]({downloadPageLink}) をご覧ください。",

x-pack/plugins/translations/translations/zh-CN.json

@@ -2115,7 +2115,6 @@
     "kbn.server.tutorials.apm.dotNetClient.configureApplication.textPost": "传递 `IConfiguration` 实例为可选操作，通过此操作，代理将通过此`IConfiguration` 实例       读取配置设置（例如，从 `appsettings.json` 文件）。",
     "kbn.server.tutorials.apm.dotNetClient.configureApplication.textPre": "对于 ASP.NET Core，请在 `Startup.cs` 文件内的 `Configure` 方法中调用 `UseElasticApm` 方法。",
     "kbn.server.tutorials.apm.dotNetClient.configureApplication.title": "将代理添加到应用程序",
-    "kbn.server.tutorials.apm.dotNetClient.download.textPre": "**警告：.NET 代理当前为公测版，不可用于生产用途。** \n\n       将代理软件包从 [NuGet]({allNuGetPacakgesLink}) 添加到 .NET 应用程序。有多个       NuGet 软件包可用于不同的用例。\n\n  对于具有 Entity Framework Core 的 ASP.NET Core       应用程序，请下载 [Elastic.Apm.All]({allApmPackageLink}) 软件包。此软件包将自动将每个代理组件添加到       您的应用程序。\n\n 如果您希望最大程度减少依存关系，您可以将       [Elastic.Apm.AspNetCore]({aspNetCorePackageLink}) 软件包仅用于       ASP.NET Core 监测，或将 [Elastic.Apm.EfCore]({efCorePackageLink}) 软件包仅用于 Entity Framework Core 监测。\n\n       如果仅希望将公共代理 API 用于手动检测，请使用 [Elastic.Apm]({elasticApmPackageLink}) 软件包。",
     "kbn.server.tutorials.apm.dotNetClient.download.title": "下载 APM 代理",
     "kbn.server.tutorials.apm.downloadServer.title": "下载并解压缩 APM Server",
     "kbn.server.tutorials.apm.downloadServerRpm": "寻找 32 位软件包？请参阅[下载页面]({downloadPageLink})。",