use array spread for htmlcollection foreach

[alastair]

Issue(s)
Last change needed to be made for related commits
dda177c
3408341

Description
According to claude, the issue was:

What almost certainly happened: your previous Parcel setup included core-js polyfills that patched
  HTMLCollection.prototype.forEach onto the prototype. Parcel 1 automatically included core-js via
  @babel/preset-env, which patches a bunch of DOM collection prototypes — adding .forEach(), Symbol.iterator,
  .entries(), etc. to HTMLCollection and NodeList.

  When you upgraded Parcel (likely to Parcel 2), two things changed:
  1. The default JS transformer switched from Babel to SWC (@parcel/transformer-js), which doesn't do automatic
  polyfill injection
  2. Even if you're still using Babel, Parcel 2 doesn't auto-include core-js polyfills the way v1 did

So this seems like a reasonable solution without going back and adding in a polyfill. Just found one more case where it wasn't fixed

[ffont]

Perfect @alastair , thanks!