[Manual backport 2.17][Workspace] Add User level setting (#7953)

[Hailong-am]

Backport 569b70d from (#7953)

[github-actions]

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[github-actions]

❌ Invalid Changelog Heading

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[codecov]

Codecov Report

Attention: Patch coverage is 67.48971% with 79 lines in your changes missing coverage. Please review.

Please upload report for BASE (2.17@0d6c74b). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
src/plugins/workspace/server/utils.ts	5.55%	17 Missing ⚠️
src/core/server/ui_settings/ui_settings_client.ts	77.55%	4 Missing and 7 partials ⚠️
...rkspace/public/components/workspace_list/index.tsx	80.39%	7 Missing and 3 partials ⚠️
src/plugins/advanced_settings/public/plugin.ts	43.75%	8 Missing and 1 partial ⚠️
...d_settings/public/management_app/user_settings.tsx	64.28%	4 Missing and 1 partial ⚠️
src/plugins/workspace/server/routes/index.ts	0.00%	5 Missing ⚠️
...ntent_management/public/components/page_render.tsx	55.55%	2 Missing and 2 partials ⚠️
src/plugins/workspace/public/plugin.ts	50.00%	3 Missing and 1 partial ⚠️
...r/saved_objects/user_ui_settings_client_wrapper.ts	91.89%	1 Missing and 2 partials ⚠️
...ade_saved_config/create_or_upgrade_saved_config.ts	66.66%	1 Missing and 1 partial ⚠️
... and 6 more

Additional details and impacted files

@@           Coverage Diff           @@
##             2.17    #8058   +/-   ##
=======================================
  Coverage        ?   60.67%           
=======================================
  Files           ?     3737           
  Lines           ?    88657           
  Branches        ?    13770           
=======================================
  Hits            ?    53792           
  Misses          ?    31585           
  Partials        ?     3280           

Flag	Coverage Δ
Linux_1	28.77% <34.91%> (?)
Linux_2	56.38% <70.58%> (?)
Linux_3	37.54% <43.42%> (?)
Linux_4	29.73% <8.33%> (?)
Windows_1	28.78% <34.91%> (?)
Windows_2	56.34% <70.58%> (?)
Windows_3	37.54% <43.42%> (?)
Windows_4	29.73% <8.33%> (?)

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[AMoo-Miki]

Closing in favor of a new backport.