[Backport 2.x] [workspace]feat/add workspace selector to left nav bar.

[opensearch-trigger-bot]

Backport 0831c99 from #8364.

[github-actions]

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[codecov]

Codecov Report

Attention: Patch coverage is 82.35294% with 12 lines in your changes missing coverage. Please review.

Project coverage is 61.01%. Comparing base (ea5f614) to head (231a901).
Report is 3 commits behind head on 2.x.

Files with missing lines	Patch %	Lines
...kspace_picker_content/workspace_picker_content.tsx	85.18%	2 Missing and 2 partials ⚠️
...mponents/workspace_selector/workspace_selector.tsx	85.71%	2 Missing and 2 partials ⚠️
...me/ui/header/collapsible_nav_group_enabled_top.tsx	0.00%	1 Missing and 1 partial ⚠️
...ublic/components/workspace_menu/workspace_menu.tsx	77.77%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##              2.x    #8418   +/-   ##
=======================================
  Coverage   61.00%   61.01%           
=======================================
  Files        3748     3749    +1     
  Lines       89089    89124   +35     
  Branches    13911    13918    +7     
=======================================
+ Hits        54351    54376   +25     
- Misses      31366    31372    +6     
- Partials     3372     3376    +4     

Flag	Coverage Δ
Linux_1	28.85% <82.35%> (+0.02%)	⬆️
Linux_2	56.46% <0.00%> (-0.01%)	⬇️
Linux_3	37.76% <0.00%> (-0.01%)	⬇️
Linux_4	30.08% <0.00%> (+<0.01%)	⬆️
Windows_1	28.87% <82.35%> (+0.02%)	⬆️
Windows_2	56.42% <0.00%> (-0.01%)	⬇️
Windows_3	37.76% <0.00%> (+<0.01%)	⬆️
Windows_4	30.08% <0.00%> (+<0.01%)	⬆️

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