doc(statusbar.js): behaviour of setBackgroundColor when AndroidEdgeToEdge is set, added minimum cordova-android version for full CSS color formats support

[GitToTheHub]

Platforms affected

Motivation and Context

• On Android, when the preference AndroidEdgeToEdge is true, this may not produce a visible status bar background fill, but can still be used to set the light/dark status bar appearance.
• Added note: Runtime support for all valid CSS color formats is fully functional since cordova-android 15.1.0.

Description

Testing

Checklist

• I've run the tests to see all new and existing tests pass
• I added automated test coverage as appropriate for this change
• Commit is prefixed with (platform) if this change only applies to one platform (e.g. (android))
• If this Pull Request resolves an issue, I linked to the issue in the text above (and used the correct keyword to close issues using keywords)
• I've updated the documentation if necessary

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 63.20%. Comparing base (919cd76) to head (2cbad0e).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1994   +/-   ##
=======================================
  Coverage   63.20%   63.20%           
=======================================
  Files          24       24           
  Lines        4922     4922           
=======================================
  Hits         3111     3111           
  Misses       1811     1811           

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