[Page Header]Make saved queries a context menu item in filter options instead of a button

[zhongnansu]

Description

• remove the save query button
• create a new menu button called "saved queries" and make it conditionally render with newhome toggle
• remove popover header "Filters"
• add separator horizontal rule

Issues Resolved

Screenshot

Testing the changes

Changelog

• skip

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

[github-actions]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 63.80%. Comparing base (b4ae264) to head (158fd19).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #7788   +/-   ##
=======================================
  Coverage   63.79%   63.80%           
=======================================
  Files        3656     3656           
  Lines       81190    81205   +15     
  Branches    12945    12949    +4     
=======================================
+ Hits        51794    51811   +17     
+ Misses      26217    26214    -3     
- Partials     3179     3180    +1     

Flag	Coverage Δ
Linux_1	30.08% <ø> (+0.02%)	⬆️
Linux_2	55.87% <ø> (ø)
Linux_3	40.42% <100.00%> (ø)
Linux_4	31.28% <ø> (ø)
Windows_1	30.09% <ø> (+0.02%)	⬆️
Windows_2	55.82% <ø> (ø)
Windows_3	40.42% <100.00%> (ø)
Windows_4	31.28% <ø> (ø)

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