feat: text track display overlays a video

[gjanblaszczyk]

Description

Text track display does not always overlay a video which may generate a different text track size and position across different browsers and devices.

Specific Changes proposed

The text track display always overlays a video.

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)
• Reviewed by Two Core Contributors

[codecov]

Codecov Report

Merging #8009 (0411afc) into main (e49286a) will increase coverage by 0.21%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #8009      +/-   ##
==========================================
+ Coverage   80.98%   81.19%   +0.21%     
==========================================
  Files         116      116              
  Lines        7472     7494      +22     
  Branches     1817     1821       +4     
==========================================
+ Hits         6051     6085      +34     
+ Misses       1421     1409      -12     

Impacted Files	Coverage Δ
src/js/tracks/text-track-display.js	84.12% <100.00%> (+2.09%)	⬆️
src/js/utils/browser.js	54.32% <0.00%> (ø)
src/js/tech/html5.js	67.50% <0.00%> (+0.20%)	⬆️
src/js/player.js	88.76% <0.00%> (+0.38%)	⬆️
src/js/tech/tech.js	83.56% <0.00%> (+0.56%)	⬆️
...rc/js/control-bar/progress-control/time-tooltip.js	84.61% <0.00%> (+2.56%)	⬆️
src/js/control-bar/picture-in-picture-toggle.js	82.75% <0.00%> (+3.44%)	⬆️
src/js/control-bar/control-bar.js	100.00% <0.00%> (+16.66%)	⬆️

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[gkatsev]

Awesome, this works well!
Had a couple of minor comments.