fix(types): use typeof for registerComponent and registerPlugin

[mister-ben]

Description

These accept and return the component/plugin class rather than an instance of the class. Currently, typescript will throw TS2345: Argument of type 'typeof MyComponent' is not assignable to parameter of type 'Component'. when registering a component.

Specific Changes proposed

jsdoc updates

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 #8451 (8ef50d3) into main (d1c3bd3) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #8451   +/-   ##
=======================================
  Coverage   82.71%   82.71%           
=======================================
  Files         113      113           
  Lines        7589     7589           
  Branches     1826     1826           
=======================================
  Hits         6277     6277           
  Misses       1312     1312           

Files	Coverage Δ
src/js/component.js	93.54% <ø> (ø)
src/js/player.js	90.90% <ø> (ø)
src/js/video.js	94.16% <ø> (ø)

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[amtins]

LGTM! 👍🏽