Continuation of #2408

• review questions & TODO items noted in the code comments
  • 35 TODOs...
• revisit
  • 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
• roleInfo work
  • editorial: reformat roleInfo.js #2620
  • update roleinfo editorial: update roleInfo.js (manually) #2624 / JSON roleInfo.js is not updated #2234
  • automate updates of roleIfno
    • editorial: CI for roleInfo.js #2625 / Automate update or roleinfo.js aria-common#31
    • replace (broken) automatic update on main with something that works => editorial: fix roleInfo.yml #2654
  • clean up automation
    • replace eval() hack
    • turn roleInfo.js into proper JSON
    • avoid prettier in PR checks
    • remove "manual process" from aria.js (i.e. the entire require block at the end)
  • consider add versioning information roleinfo.js unversioned aria-common#71
  • fix aria-current is missing in "6.6 Taxonomy of WAI-ARIA States and Properties" #1823
  • fix Missing role=presentation for "Name from prohibited" #2073
  • fix [aria] Request: Provide the ARIA “Characteristics” data as JSON or in some other machine-readable form #2445
• refactor 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)