[Workspace]Add instruction for force enable new navigation for workspace

[Hailong-am]

Description

Add a config in opensearch_dashbaords.yml file to force enable new nav/home and make the item in advanced setting read only. This is useful when workspace is enabled, that would help user have better UI experience for workspace.

uiSettings:
  overrides:
    "home:useNewHomePage": true

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

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 67.56%. Comparing base (901e39f) to head (4de8822).
Report is 347 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7186      +/-   ##
==========================================
- Coverage   67.56%   67.56%   -0.01%     
==========================================
  Files        3469     3469              
  Lines       68499    68499              
  Branches    11138    11138              
==========================================
- Hits        46280    46278       -2     
- Misses      19514    19515       +1     
- Partials     2705     2706       +1     

Flag	Coverage Δ
Linux_1	33.15% <ø> (ø)
Linux_2	55.25% <ø> (ø)
Linux_3	45.30% <ø> (-0.02%)	⬇️
Linux_4	34.72% <ø> (ø)
Windows_1	33.17% <ø> (ø)
Windows_2	55.21% <ø> (ø)
Windows_3	45.32% <ø> (ø)
Windows_4	34.72% <ø> (ø)

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