feat: Feature notifications

[georgylobko]

Description

Related links, issue #, if available: n/a

How has this been tested?

Review checklist

The following items are to be evaluated by the author(s) and the reviewer(s).

Correctness

• Changes include appropriate documentation updates.
• Changes are backward-compatible if not indicated, see CONTRIBUTING.md.
• Changes do not include unsupported browser features, see CONTRIBUTING.md.
• Changes were manually tested for accessibility, see accessibility guidelines.

Security

• If the code handles URLs: all URLs are validated through the checkSafeUrl function.

Testing

• Changes are covered with new/existing unit tests?
• Changes are covered with new/existing integration tests?

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[codecov]

Codecov Report

❌ Patch coverage is 94.16058% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 97.14%. Comparing base (0051fe9) to head (4379ee3).

Files with missing lines	Patch %	Lines
...efresh-toolbar/state/use-feature-notifications.tsx	92.40%	6 Missing ⚠️
...ar/drawer/feature-notifications-drawer-content.tsx	95.00%	1 Missing ⚠️
...l-refresh-toolbar/toolbar/trigger-button/index.tsx	80.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4186      +/-   ##
==========================================
- Coverage   97.15%   97.14%   -0.02%     
==========================================
  Files         878      880       +2     
  Lines       25719    25842     +123     
  Branches     9299     9342      +43     
==========================================
+ Hits        24988    25103     +115     
+ Misses        725      692      -33     
- Partials        6       47      +41     

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