fix: AutoComplete hinter should link to p5js.org for v2, and v1.p5js.org

[ksen0]

Fixes #4233

Demo:

Changes:

I have verified that this pull request:

• has no linting errors (npm run lint)
• has no test errors (npm run test)
• has no typecheck errors (npm run typecheck)
• is from a uniquely-named feature branch and is up to date with the develop branch.
• is descriptively named and links to an issue number, i.e. Fixes #123
• meets the standards outlined in the accessibility guidelines

[ksen0]

Hi @raclim @doradocodes , fixing this problem is a prereq for making the hinter default! Also tagging @skyash-dev - if this PR is incomplete, and you'd like to make an alternative PR, please feel free. In that case I can close this one, I haven't tested it. The issue came up when we were doing the v2 default switch on the editor and I made the PR mainly as a reminder.

[skyash-dev]

@ksen0 as i can see the update-p5-hinter file was already updated here

and the changes to index file looks good to me. i can test this once i reach home (afk rn)