This commit makes a much needed cleanup and overhaul of the volume OSD.
Changes:
- Fix context menus for app streams
- Remove dedicated mute button in cards (simplifies the UI for touch
devices)
- Add selection background for card delegates
- Sync audio models with plasma-pa
- Simplify implementation of cards
- Sync volume slider implementation with plasma-pa
We so far have been recreating the background elements for all the item throughout the shell. This merge request simplifies this by unifying these elements into a single component, making is easier to keep things at a consistent design while also being able to adjust things when needed in the future.
Per request, I tried to keep thing looking mostly the same as before.
The first picture is what the action drawer looks like now, the one after is with these changes.
