Previously `https://example.com` and `https://example.com/` would be
redirected to `https://matrix.example.com`.

However, `https://example.com/?something` was not handled and was tried
to be served as a file by matrix-static-files for this base domain.

From now on, paths containing query strings will be handled as well
and the query string will be passed along.
Example: `https://example.com/?something` -> `https://matrix.example.com/?something`