[FEATURE REQUEST] Reduce size of navigation bar

[ANewDawn]

Is your feature request related to a problem? Please describe. Navigation bar takes up too much space which could be reduced.

Describe the solution you'd like With labels removed there is lot of space around icons which could be reduced further to free up more space for the feed.

Describe alternatives you've considered If possible hiding the navigation bar when scrolling would be nice feature also. (#16)

Additional context In true black navigation bar still have some subtle material theme that doesn't blend with true black. (#15)

Many thanks