Fix Webpack 5 issues by adding polyfill

[5ZYSZ3K]

No description provided.

[jsamr]

Nit: uncommon snake case in file name

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.65%. Comparing base (170da76) to head (e0f54e9).
⚠️ Report is 1430 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #26      +/-   ##
==========================================
- Coverage   99.30%   98.65%   -0.66%     
==========================================
  Files          57      140      +83     
  Lines        1148     2076     +928     
  Branches      313      637     +324     
==========================================
+ Hits         1140     2048     +908     
- Misses          8       27      +19     
- Partials        0        1       +1     

Flag	Coverage Δ
css-processor	100.00% <ø> (ø)
render	97.83% <ø> (?)
transient-render-engine	98.95% <ø> (+<0.01%)	⬆️

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[5ZYSZ3K]

@jsamr I've fixed the website, it's building and running now. After merging that, I will make a PR with last adjustments to the website and documentation

[5ZYSZ3K]

@jsamr My plan is that after merging this PR, I would deploy the website to github pages, then I would update the docs to target the new page and the new library everywhere, and we'll be ready for a release