* Allow using icons from freedesktop.org icon theme for most ForkAwesome
icons if available
* Let's not use it for the nested list of details in the models for now
* See https://github.com/Martchus/syncthingtray/issues/121
The normal QPalette can be used to determine the icon color so it is
unnecessary to use the flag for custom bright colors here (which is only
intended for colors which are not on the standard QPalette).
* FontAwesome uses a propritary build system so let's move to its fork
ForkAwesome similar to Syncthing
* See https://github.com/syncthing/syncthing/pull/5237
* Bundle the font file instead of having the SVGs directly within
Syncthing Tray's own repository
The default of 32 px should be fine in most cases and when the UI is scaled
it is also automatically scaled. However, if one has a tray area or Plasma
panel with extraordinarily big icons like latte-dock it might still be
required to render icons at a higher resolution. This is hard to determine
programmatically so I'm just adding a manual setting.
This is useful because sometimes the background color of the system
tray is dark but the overall system UI still uses a light theme.
For the Plasmoid this should never be the case, though. Hence the
extra settings are not available there.