fix: decode string when containing hexcode

[CarlosVillasenor]

Description

Bugfix for when menu-item.js generates a vjs-menu-item-text with hexcode characters.

Specific Changes proposed

Decode string when containing hexcode in menu-item.js

Requirements Checklist

• Feature implemented / Bug fixed
• If necessary, more likely in a feature request than a bug fix
  • Change has been verified in an actual browser (Chrome, Firefox, IE)
  • Unit Tests updated or fixed
  • Docs/guides updated
  • Example created (starter template on JSBin)
  • Has no DOM changes which impact accessiblilty or trigger warnings (e.g. Chrome issues tab)
  • Has no changes to JSDoc which cause npm run docs:api to error
• Reviewed by Two Core Contributors

[codecov]

Codecov Report

Attention: Patch coverage is 66.66667% with 3 lines in your changes missing coverage. Please review.

Project coverage is 83.75%. Comparing base (fa7e648) to head (d29c1f7).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
src/js/utils/str.js	60.00%	2 Missing ⚠️
src/js/menu/menu-item.js	75.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8847      +/-   ##
==========================================
+ Coverage   83.21%   83.75%   +0.54%     
==========================================
  Files         120      120              
  Lines        8065     8078      +13     
  Branches     1936     1941       +5     
==========================================
+ Hits         6711     6766      +55     
+ Misses       1354     1312      -42     

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