Rewrite UI in Compose

[BlakeBarrett]

As a Snse user,
I want to experience the most modern Material Design 3.0 has to offer,
so that I'm not writing in cuneiform.

[BlakeBarrett]

v2.0 is being developed in the https://github.com/BlakeBarrett/Snse-kmm repo and will be merged in here when it is ready.

[BlakeBarrett]

Status of that project can be tracked here: https://github.com/BlakeBarrett/Snse-kmm/issues