Fix: Fix hinting issues with MCQ, GMCQ and Matching (fix #113)

[swashbuck]

Fixes #113

Fix

• Fix hinting in MCQ and GMCQ so that it dims incorrect answers
• Fix Matching to prevent "(correct)" from being shown repeatedly on each mouse click.
• Fix auto-answer logic to only remove hinting if a question is being answered rather than just a mouse click. Was causing setMatchingHinting() to use reverse logic for hintingEnabled.

Update

• Change Matching to use _globals._accessibility._ariaLabels.correct instead of being hardcoded.
• Make "(correct)" bold for Matching hint. Remove unused style.

Notes

• I did not test questionStrip or ppq which are currently supported

Screenshots

Correct MCQ hinting behavior:

Incorrect repeated "(correct)" Matching behavior:

[github-actions]

🎉 This PR is included in version 3.9.1 🎉

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