Fixes for dark mode, needed after the UX Overhaul
- Replace hardcoded color values with references to style.xml, which in turn has different values for light and dark theme.
- Force reload the activity to get the theme applied.
TODO:
- Swap uses it's own theme, need to figure out a way to handle that. Currently the main Nearby screen which you get to from the bottom navigation is ok, but anything after that is light / custom themed.