Add support for proxito error pages

agjohnson commented 1 month ago

These pages are minimal error pages compared to the dashboard pages, and don't have a header, footer, our JS, or our icons.

Also tunes up dashboard error pages to match, right before the pages were copied.

Fixes #411
Fixes #304
Requires https://github.com/readthedocs/readthedocs.org/pull/11494
Requires https://github.com/readthedocs/readthedocs-corporate/pull/1837
Requires https://github.com/readthedocs/common/pull/220

agjohnson commented 3 weeks ago

I finally had a chance today to get back to this work and wrap it up. I have tested this a good amount, including the underlying, required PRs. Here is where this all is right now.

The errors are centered in the window and are pretty minimal in comparison to what the error pages are now. The lack of major branding, header, and footer are all intentional.

The global search input was dropped for now too, as was most of the content from the contextualized 404 pages that seemed to target maintainers instead of project readers. The DNS 404 error still targets project maintainers however.

On desktop: