More Tooling

[lishaduck]

Why

fzyzcjy made some cool tools that look like they'll be useful.

The Plan

Tasks

Beta Give feedback

1. flutter_rust_bridge will be useful for cryptography stuff.
2. flutter_convenient_test might be helpful.
3. flutter_smooth looks cool, but we'll want to wait until the engine patches are merged.

Also, if flutter_rust_bridge is used, or when we start using Appwrite functions, we'll need to re-visit #33.