fix: Change color for hotspot rendered inside flashbar

[just-boris]

Description

Fix color contrast issue

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

How has this been tested?

Screenshot tests in my dev pipeline

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

All modified and coverable lines are covered by tests ✅

Project coverage is 96.56%. Comparing base (9f97233) to head (febfd22).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3567   +/-   ##
=======================================
  Coverage   96.56%   96.56%           
=======================================
  Files         807      807           
  Lines       23466    23466           
  Branches     8174     8184   +10     
=======================================
  Hits        22659    22659           
+ Misses        800      753   -47     
- Partials        7       54   +47     

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[Al-Dani]

just a thought, if this will be a screenshot test, maybe better not to launch any tutorials by default so that popover doesn't cover hotspots on other flashitems?

[just-boris]

Tried this. When tutorial is not active, hotspots are hidden too.

My plan for the screenshot test – dismiss the currently open popover before taking a screenshot

[just-boris]

P.S. need a new approval, because I needed to resolve merge conflicts with another style-dictionary change: #3558