feat: implement Mux badge

[davekiss]

Adds proudly-display-mux-badge attribute to render a linkback to Mux

Video demo: https://cln.sh/wjpPRNXD

[vercel]

@davekiss is attempting to deploy a commit to the Mux Team on Vercel.

A member of the Team first needs to authorize it.

[dylanjha]

Such a good idea!

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
elements-demo-vanilla	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Sep 19, 2024 7:57pm

[codecov]

Codecov Report

Attention: Patch coverage is 91.26984% with 11 lines in your changes missing coverage. Please review.

Project coverage is 80.68%. Comparing base (76aa003) to head (eadc94c).
Report is 51 commits behind head on main.

Files with missing lines	Patch %	Lines
packages/mux-player/src/index.ts	38.88%	11 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #988      +/-   ##
==========================================
- Coverage   81.67%   80.68%   -0.99%     
==========================================
  Files          40       41       +1     
  Lines        8571     9711    +1140     
  Branches      470      504      +34     
==========================================
+ Hits         7000     7835     +835     
- Misses       1565     1876     +311     
+ Partials        6        0       -6     

Flag	Coverage Δ
	80.68% <91.26%> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
packages/mux-player/src/template.ts	94.67% <100.00%> (-0.27%)	⬇️
packages/mux-player/src/themes/gerwig/gerwig.html	100.00% <100.00%> (ø)
packages/mux-player/src/index.ts	72.98% <38.88%> (+0.42%)	⬆️

... and 17 files with indirect coverage changes