…d-layout` (elastic#205341)

Closes elastic#190446

## Summary

This PR swaps out `react-grid-layout` for the new internal
`kbn-grid-layout` in the Dashboard plugin. This is the first major step
in making collapsible sections possible in Dashboard.

- **`react-grid-layout` (before)**:

https://github.com/user-attachments/assets/ca6ec059-7f4a-43fb-890e-7b72b781e50b

- **`kbn-grid-layout` (after)**:

https://github.com/user-attachments/assets/3d3de1f3-1afc-4e6b-93d6-9cc31a46e2cf

### Notable Improvements

- Better handling of resizing panels near the bottom of the screen

  | `react-grid-layout` | `kbn-grid-layout` |
  |--------|--------|
| ![Jan-09-2025
09-59-00](https://github.com/user-attachments/assets/75854b76-3ad7-4f06-9745-b03bde15f87a)
| ![Jan-09-2025
09-26-24](https://github.com/user-attachments/assets/f0fbc0bf-9208-4866-b7eb-988c7abc3e50)
|

- Auto-scroll when dragging / resizing panels near the top and bottom of
the screen, making it much easier to move panels around by larger
distances

  | `react-grid-layout` | `kbn-grid-layout` |
  |--------|--------|
| ![Jan-09-2025
10-01-30](https://github.com/user-attachments/assets/e3457e5e-3647-4024-b6e6-c594d6d3e1d7)
| ![Jan-09-2025
09-25-35](https://github.com/user-attachments/assets/3252bdec-2bbc-4793-b089-346866d4589b)
|

- More reliable panel positioning due to the use of CSS grid rather than
absolute positioning via pixels

  | `react-grid-layout` | `kbn-grid-layout` |
  |--------|--------|
| ![Screenshot 2025-01-09 at 9 32
52 AM](https://github.com/user-attachments/assets/06bd31a4-0a9f-4561-84c3-4cd96ba297b0)
| ![Screenshot 2025-01-09 at 9 35
14 AM](https://github.com/user-attachments/assets/573dab98-3fb9-4ef6-9f37-c4cf4d03ce52)
|

- Better performance when dragging and resizing (see
elastic#204134 for a more thorough
explanation) and a smaller bundle size than `react-grid-layout`

### Checklist

- [x] [Unit or functional
tests](https://www.elastic.co/guide/en/kibana/master/development-tests.html)
were updated or added to match the most common scenarios
- [x] The PR description includes the appropriate Release Notes section,
and the correct `release_note:*` label is applied per the
[guidelines](https://www.elastic.co/guide/en/kibana/master/contributing.html#kibana-release-notes-process)

### Identify risks

This PR contains a significant change to the Dashboard layout engine,
which means that it carries a decent amount of risk for introducing new,
uncaught bugs with dragging / resizing panels and collision resolution.
That being said, `kbn-grid-layout` has been built **iteratively** with
plenty of testing along the way to reduce this risk.

## Release note
Improves Dashboard layout engine by switching to the internally
developed `kbn-grid-layout`.

---------

Co-authored-by: kibanamachine <42973632+kibanamachine@users.noreply.github.com>
Co-authored-by: Marta Bondyra <4283304+mbondyra@users.noreply.github.com>
(cherry picked from commit 6865715)

# Conflicts:
#	packages/kbn-grid-layout/grid/grid_panel/resize_handle.tsx
#	packages/kbn-grid-layout/grid/grid_row/grid_row.tsx
#	packages/kbn-grid-layout/grid/use_grid_layout_state.ts