Upgraded EUI to v76.0.0 (#152506)

👋 Hi all - the biggest breaking change of this PR is around two icon
type changes/renames.

1. ⚠️ **The  `alert` icon is now named `warning`**
- <img width="103" alt=""
src="https://user-images.githubusercontent.com/549407/223561599-8913e88c-676f-47cd-aaed-81b64783bd81.png"
align="middle">
- This change should have been automatically converted on your behalf by
the EUI team, **but if for some reason** we missed making this
conversion in this PR and your icon(s) are now broken, please ping us or
let us know in this PR (or fix yourself after this PR merges).
- In some cases, teams were using this icon for error messages,
alongside the `danger` color. In those cases, we opinionatedly changed
those icon usages to the new `error` icon instead of using the old
alert/warning icon.

2. 🛑 **The `crossInACircleFilled` icon has been removed, and a new
`error` icon added**
- <img width="84" alt=""
src="https://user-images.githubusercontent.com/549407/223561892-4406bdf6-1a55-49ac-85ad-3a11eb7c090d.png"
align="middle">
- The conversion for this breaking change was not straightforward. This
was the path we used to determine what to change `crossInACircleFilled`
usages to:
- If the icon was associated with errors or error messages, we changed
it to the new `error` icon.
- If a "delete" action was associated with this icon, we changed it to
the `trash` icon instead.
- If a "clear" action was associated with this icon, we changed it to
just the `cross` icon, or in some cases `minusInCircleFilled` (if used
alongside `plusInCircleFilled`).
- Again, if we made a mistake during this conversion or missed your
plugin, please feel free to ping us.

## Summary

`eui@75.1.2` ⏩ `eui@76.0.2`

## [`76.0.2`](https://github.com/elastic/eui/tree/v76.0.2)

**Bug fixes**

- Added a legacy `alert` alias for the `warning` `EuiIcon` type
([#6640](https://github.com/elastic/eui/pull/6640))

## [`76.0.1`](https://github.com/elastic/eui/tree/v76.0.1)

**Bug fixes**

- Fixed broken icons on all `isInvalid` form controls
([#6629](https://github.com/elastic/eui/pull/6629))

## [`76.0.0`](https://github.com/elastic/eui/tree/v76.0.0)

- Added `pivot` glyph to `EuiIcon`
([#6605](https://github.com/elastic/eui/pull/6605))
- Added the `displayHeaderCellProps` API to `EuiDataGrid`'s columns,
which allows passing custom props directly to column header cells
([#6609](https://github.com/elastic/eui/pull/6609))
- Added the new `headerCellProps`/`footerCellProps` APIs to
`EuiDataGrid`'s control columns, which allows passing custom props
directly to control column header or footer cells
([#6609](https://github.com/elastic/eui/pull/6609))
- Added a new `footerCellRender` API to `EuiDataGrid`'s control columns,
which allows completely customizing control column rendering (previously
rendered an empty cell)
([#6609](https://github.com/elastic/eui/pull/6609))
- Updated the styling of nested ordered lists in `EuiText` to align with
GitHub's list style, which is a popular format used in Markdown or MDX
formatting ([#6615](https://github.com/elastic/eui/pull/6615))
- Added a margin-bottom property exclusively to the direct child `ul`
and `ol` elements of the `EuiText` component
([#6615](https://github.com/elastic/eui/pull/6615))
- Fix issue with badges appearing within an `EuiBadgeGroup`, where the
CSS rule to override the `margin-inline-start` was not being applied
correctly due to the order of appearance in the CSS rules
([#6618](https://github.com/elastic/eui/pull/6618))

**Bug fixes**

- Fixed `EuiDataGrid` footer control columns rendering with cell
expansion popovers when they should not have been
([#6609](https://github.com/elastic/eui/pull/6609))
- Fixed an `EuiSkipLink` bug where main content loading in
progressively/dynamically after the skip link rendered was not being
correctly focused ([#6613](https://github.com/elastic/eui/pull/6613))

**Breaking changes**

- Renamed `EuiIcon`'s `alert` to `warning`
([#6608](https://github.com/elastic/eui/pull/6608))
- Removed `EuiIcon`'s `crossInACircleFilled` in favor of `error`
([#6608](https://github.com/elastic/eui/pull/6608))

---------

Co-authored-by: Davey Holler <daveyholler@hey.com>
Co-authored-by: Constance Chen <constance.chen@elastic.co>
Co-authored-by: Kibana Machine <42973632+kibanamachine@users.noreply.github.com>
Co-authored-by: Jon <jon@elastic.co>

packages/core/application/core-application-browser-internal/src/ui/app_not_found_screen.tsx

@@ -20,7 +20,7 @@ export const AppNotFound = () => (
     <EuiPageBody>
       <EuiPageContent verticalPosition="center" horizontalPosition="center">
         <EuiEmptyPrompt
-          iconType="alert"
+          iconType="warning"
           iconColor="danger"
           title={
             <h2>