* home buttons: use `button-sequence` for consistency of gaps with other ui
* folder-actions: use `button-sequence` for better overflowing and so gap actually works instead of relying on whitespace, because currently it doesn't due to lack of flex
* introduce variable `--button-spacing` for `button-row` and `button-sequence`
* it's `0.33rem` on desktop for more pleasant hovering over button rows
* it's `0.5rem` on touchscreens for worrying less about misstapping
Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/7271
Reviewed-by: Gusted <gusted@noreply.codeberg.org>
Co-authored-by: 0ko <0ko@noreply.codeberg.org>
Co-committed-by: 0ko <0ko@noreply.codeberg.org>