solves #56.
- The expected filename is `404.html`, like GitHub Pages
- Each repo/branch can have one `404.html` file at it's root
- If a repo does not have a `pages` branch, the 404.html file from the `pages` repository is used
- You get status code 404 (unless you request /404.html which returns 200)
- The error page is cached
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close#56
Reviewed-on: https://codeberg.org/Codeberg/pages-server/pulls/81
Reviewed-by: 6543 <6543@noreply.codeberg.org>
Co-authored-by: crystal <crystal@noreply.codeberg.org>
Co-committed-by: crystal <crystal@noreply.codeberg.org>
Crystaland6543
