continue aria.js work

[pkra]

Continuation of #2408

• review questions & TODO items noted in the code comments
  • 35 TODOs...
• revisit
  • aria-current is missing in "6.6 Taxonomy of WAI-ARIA States and Properties" #1823
  • Missing role=presentation for "Name from prohibited" #2073
  • JSON roleInfo.js is not updated #2234
  • [aria] Request: Provide the ARIA “Characteristics” data as JSON or in some other machine-readable form #2445
  • Editorial: Advance the heading level for Notes #2363 / aria.js running too late aria-common#92
  • modernizing aria.js aria-common#104
  • [aria.js]: "abstract role" not added to index #2549
• return roleInfo to make nodejs-generation of roleInfo.js easier
  • and automatically update roleInfo.js Automate update or roleinfo.js aria-common#31
  • versioning roleinfo.js unversioned aria-common#71
• turn everything into ESMs (if respec allows it)
• review other JS files (e.g., aria-child.js, resolveReference.sj) to prepare their refactoring (with shared modules)
• consider alternatives to using class names as JS hooks (cf. [aria.js]: "abstract role" not added to index #2549)

[pkra]

Note to self: re-review w3c/aria-common#104.

[pkra]

A first experiment with SSG roleInfo.js updates pkra#2 @jnurthen @spectranaut @daniel-montalvo Note that the action is set to update the PR itself but we talked about updating on push to main.