- remove tiled preview corners; merge with misc.scss
- sync general label styles from libadwaita
- use variables in ibus css
- remove redundant spacing variable as its equal to padding
- use more global styles in screenshot css
- tidy up entry styles
- cleanup the networks dialog stylesheet
- make colours less dark
- cleanup the popover stylesheet
- cleanup the mixins for tiles and overview icons
- adjust the button style definitions on checked style
- add osd button definitions
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2172>
Instead of alphabetical ordering, sort the widget stylesheets
from more global to more local while grouping related things.
This helps reduce unintended behaviors and ugly overrides and
make styling and debugging easier.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/938