* 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.
As per the main screens feature image behind the "Recently added"
items, also use the same abstract artwork as a placeholder for the
feature image in app details.