Use masonry grid for settings

Using a masonry grid for displaying the player and settings was a good idea.

I extracted some of the logic to a custom hook and tried to make it as expressive as possible although it became harder to understand because we now have to split the settings into kind of 'global' and 'nested' settings again. I'm open to naming suggestions because useSettingsDisplayItems might not be optimal but I couldn't come up with a better name.