Lists: replace big symbolics
Examples of large symbolics used in list rows:
The symbolics don't look good at this size and they clash with the other color icons.
Items where i can currently see these symbolics being used:
- Updates
- OS updates
- Input methods
- Flatpak runtimes
- Installed list
- Flatpak runtimes
- Codecs
- Input methods
- Languages
Adwaita icon theme doesn't give us much in the way of color icons. We could use application-x-executable and application-x-sharedlib. That wouldn't be much of a regression in terms of icon uniqueness. Alternatively, we might ned to think about adding more color icons for these cases.