Enable making showing only read/unread/... etc a default. We can already filter on this (on desktop using Show filter in the top right), but this isn't stored. I would love for this to be stored somehow. This could be done in many ways.
- Store it as user preference after change
- Adding an additional setting to the settings that allows us to set the default

It is stored in the url (#filter=unread), but this is reset when clicking on the inbox button.