[ENT-9342, ENT-9338] Video transcript updates

[mahamakifdar19]

Tickets

• ENT-9342
• ENT-9338

Description

• Updated the videos to have a default transcript language that matches the browser's default.
• Fixed an issue where video player controls were missing for a specific video due to inconsistent size.

For all changes

• Ensure adequate tests are in place (or reviewed existing tests cover changes)
• Ensure English strings are marked for translation. See documentation for more details.

Only if submitting a visual change

• Ensure to attach screenshots
• Ensure to have UX team confirm screenshots

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.09%. Comparing base (8dafafc) to head (3f995fe).
Report is 4 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1160      +/-   ##
==========================================
+ Coverage   88.05%   88.09%   +0.04%     
==========================================
  Files         394      394              
  Lines        8338     8359      +21     
  Branches     2008     2058      +50     
==========================================
+ Hits         7342     7364      +22     
+ Misses        954      952       -2     
- Partials       42       43       +1     

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