feat(scope): Scoped user feedback capture

[limbonaut]

Adds scoped capture of user feedback by introducing the sentry_scope_capture_feedback function, joining the existing family of sentry_scope_capture_x functions. It layers the given scope on top of the global scope when building the feedback event, so a single capture can carry its own tags, user, and contexts without mutating global state.

• Depends on feat(feedback): Enrich user feedback with scope data #1915
• Refs Make scopes more aligned to Sentry specs to ease support in the downstream SDKs #1838

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📖	Do not forget to update Sentry-docs with your feature once the pull request gets approved.

Generated by 🚫 dangerJS against 2f473dc

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Codecov Report

❌ Patch coverage is 90.32258% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 75.77%. Comparing base (7212f08) to head (2f473dc).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1916      +/-   ##
==========================================
+ Coverage   75.73%   75.77%   +0.03%     
==========================================
  Files          93       93              
  Lines       22082    22101      +19     
  Branches     3932     3934       +2     
==========================================
+ Hits        16724    16747      +23     
+ Misses       4471     4468       -3     
+ Partials      887      886       -1     

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