Improve inline cloze item alignment on Safari

[jacbn]

This feels fairly safe as this should only modify where on the line the cloze region generates. I haven't noticed any major differences on non-Safari browsers regardless.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 43.49%. Comparing base (2ee0096) to head (52c5b65).

Files with missing lines	Patch %	Lines
...pp/components/elements/quiz/QuizProgressCommon.tsx	0.00%	2 Missing ⚠️
...onents/elements/markup/portals/InlineDropZones.tsx	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2222      +/-   ##
==========================================
- Coverage   43.50%   43.49%   -0.01%     
==========================================
  Files         597      597              
  Lines       25242    25244       +2     
  Branches     8375     7500     -875     
==========================================
  Hits        10981    10981              
- Misses      14204    14214      +10     
+ Partials       57       49       -8     

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.