In similar vein of forgejo/forgejo#7416
- Fomantic's tab module is responsible for showing the right content when a tab is clicked upon. Most notably the Write/Preview tabs on the comment editor.
- Remove it and replace the javascript with our own function that is able to provide everything Forgejo needs.
- Replace the CSS with our own bare minimum CSS.
- No functionality or visual is affected by this replacement.
- E2E test added.
Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/8587
Reviewed-by: Otto <otto@codeberg.org>
Reviewed-by: 0ko <0ko@noreply.codeberg.org>
Co-authored-by: Gusted <postmaster@gusted.xyz>
Co-committed-by: Gusted <postmaster@gusted.xyz>
