Remove empty space when resize datagrid table in Discover and Allow saving column width in both Discover and Dashboards Embeddable

[ananzh]

Description

• Fixes the column resize issue observed in [Discover] column scaling regression in discover #5671, which shows empty space on the right when drag the column.
• Allow saved column width which is a feature request in [Discover 2.0][Feature Request] Persistent Column Width in Data Grid Table #5726.
• It also allows dashboard embeddable to save the datagrid table width adjustment.

Issues Resolved

#5671
#5726

Screenshot

rm-empty-space-savable-width.mov

Testing the changes

Check List

• All tests pass
  • yarn test:jest
  • yarn test:jest_integration
• New functionality includes testing.
• New functionality has been documented.
• Update CHANGELOG.md
• Commits are signed per the DCO using --signoff

[codecov]

Codecov Report

Attention: Patch coverage is 60.00000% with 4 lines in your changes are missing coverage. Please review.

Project coverage is 67.34%. Comparing base (902e216) to head (6a22b71).
Report is 113 commits behind head on main.

Files	Patch %	Lines
...lication/utils/state_management/discover_slice.tsx	50.00%	1 Missing and 1 partial ⚠️
...n/components/data_grid/data_grid_table_columns.tsx	80.00%	1 Missing ⚠️
src/plugins/discover/public/migrate_state.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5883      +/-   ##
==========================================
- Coverage   67.34%   67.34%   -0.01%     
==========================================
  Files        3352     3352              
  Lines       65080    65088       +8     
  Branches    10485    10488       +3     
==========================================
+ Hits        43829    43834       +5     
- Misses      18699    18701       +2     
- Partials     2552     2553       +1     

Flag	Coverage Δ
Linux_1	31.82% <0.00%> (-0.01%)	⬇️
Linux_2	55.57% <ø> (ø)
Linux_3	44.75% <66.66%> (+<0.01%)	⬆️
Linux_4	35.03% <ø> (ø)
Windows_1	31.84% <0.00%> (-0.01%)	⬇️
Windows_2	55.53% <ø> (ø)
Windows_3	44.75% <66.66%> (+<0.01%)	⬆️
Windows_4	35.03% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[ashwin-pc]

Nice, LGTM. Thanks for adding the test :)

[ananzh]

We think add this will slow the column resize and might choose a different way to resolve the issue. As synced up with @ashwin-pc, we will put it in 2.14 release.

[kavilla]

@ananzh will remove the 2.14 label as this in draft still. And have added the 2.15 label or if it needs to be closed feel free to do so.

[BionIT]

Hi @ananzh , is this PR targeting 2.15?