- directly click email address
- show prohibited login state
## Testing
- visit admin panel
- visit a user
- click on "view details"
- check that email address is clickable and opens local email editor
- check that "suspended account" status is visible

Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/7062
Reviewed-by: Gusted <gusted@noreply.codeberg.org>
Co-authored-by: Otto Richter <git@otto.splvs.net>
Co-committed-by: Otto Richter <git@otto.splvs.net>
This PR implements a proposal to clean up the admin users table by
moving some information out to a separate user details page (which also
displays some additional information).
Other changes:
- move edit user page from `/admin/users/{id}` to
`/admin/users/{id}/edit` -> `/admin/users/{id}` now shows the user
details page
- show if user is instance administrator as a label instead of a
separate column
- separate explore users template into a page- and a shared one, to make
it possible to use it on the user details page
- fix issue where there was no margin between alert message and
following content on admin pages
<details>
<summary>Screenshots</summary>


</details>
Partially resolves#25939
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Co-authored-by: Giteabot <teabot@gitea.io>