feat: Add SupportPromptGroup

[katiegeorge]

Description

This PR adds SupportPromptGroup to Cloudscape.

It also adds necessary tests and utils to make it a single tab stop.

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

Attention: Patch coverage is 98.94737% with 4 lines in your changes missing coverage. Please review.

Project coverage is 99.11%. Comparing base (62fec21) to head (0a1e96b).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/internal/events/index.ts	96.87%	2 Missing ⚠️
src/support-prompt-group/internal.tsx	98.81%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #37      +/-   ##
==========================================
- Coverage   99.23%   99.11%   -0.12%     
==========================================
  Files          19       26       +7     
  Lines         520      900     +380     
  Branches       61      129      +68     
==========================================
+ Hits          516      892     +376     
- Misses          4        8       +4     

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