Maintenance: Fix url for all packages in package.json

[joeycozza]

What I did

Mostly I updated the homepage and repository.directory fields in many package.json files to reflect the change when a handful of directories were moved into a new code directory.

I also found a few broken links in some documentation so I updated them as well.

Also, updated main to next on most of the url changes with yannbf's guidance

How to test

Try opening the old url, see it fail.
Try opening the new url, see it work.

Checklist

• Make sure your changes are tested (stories and/or unit, integration, or end-to-end tests)
• Make sure to add/update documentation regarding your changes
• If you are deprecating/removing a feature, make sure to update
  MIGRATION.MD

Maintainers

• If this PR should be tested against many or all sandboxes,
  make sure to add the ci:merged or ci:daily GH label to it.
• Make sure this PR contains one of the labels below.

["cleanup", "BREAKING CHANGE", "feature request", "bug", "documentation", "maintenance", "dependencies", "other"]

[jonniebigodes]

@joeycozza once again, thanks for taking the time to put together yet another pull request and help us with not only our documentation but also the addon ecosystem. From my end, this is almost good to go. I left a small item for you to look into. I'll defer to @yannbf and see what he has to say so that we continue to work on this to get it to a point where we can merge it.

Looking forward to hearing from you.

Stay safe

[yannbf]

This looks fantastic! Thank you so so much for your contributions @joeycozza !

[jonniebigodes]

@joeycozza sorry for the delayed response, I just checked, and it's good on my end. Thanks for addressing the feedback so promptly. Appreciate it 🙏 ! We'll get this one in soon.

Hope you have a great weekend.

Stay safe

[yannbf]

This is perfect. Thank you so much for your contribution @joeycozza and sorry for the confusion! ❤️