Webpage Integration: Wire Up User Profile Edit Forms for Javascript-less Support

The current user profile editing tickets won't account for js-less environments. This ticket should cover wiring up a js-less capability to submit all user profile forms at once. So this is a follow-up ticket to after the following tickets are merged:
- #2449
- #2447
- #2448
- #2458
- #2443

Submitting one form without javascript means we have to submit all the forms at once, because without js the submission triggers a page refresh, which would make the user lose everything they've edited in the other forms.

Review tickets #2449, #2447, #2448, #2458, and #2443 first, then trace the user profile edit forms they introduce. Implement the follow-up wiring so submitting without JavaScript sends all edited forms together and a page refresh does not lose the other changes.

Written by the indexing model from the issue text.