docs: mui mediastore example

[cjpillsbury]

Adding an example page for using the new React integration (hooks etc) with React components. Also added time utils to the react media store export to be easily usable by components.

Deployed page of example: https://media-chrome-demo-nextjs-git-fork-cjpillsbury-docs-m-824907-mux.vercel.app/material-ui-player-chrome

[vercel]

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[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
media-chrome	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Apr 1, 2024 8:02pm
media-chrome-demo-nextjs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Apr 1, 2024 8:02pm
media-chrome-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Apr 1, 2024 8:02pm

[codecov]

Codecov Report

Attention: Patch coverage is 87.50000% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 72.35%. Comparing base (3ea80df) to head (0090506).
Report is 51 commits behind head on main.

❗ Current head 0090506 differs from pull request most recent head 7e8ba2a. Consider uploading reports for the commit 7e8ba2a to get more accurate results

Files	Patch %	Lines
src/js/media-duration-display.js	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #868      +/-   ##
==========================================
- Coverage   78.55%   72.35%   -6.21%     
==========================================
  Files          59       79      +20     
  Lines       11080    15457    +4377     
==========================================
+ Hits         8704    11184    +2480     
- Misses       2376     4273    +1897     

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