this adds TLS encryption and the needed pairing and pinning to make it
work in a local network without any CA. In its current state (a
readonly websocket) the app doesn't require any encryption in a local
network. However this lays the groundwork for future features such as
screenshot sharing, phone notifactions shown in headset etc.
The Webview in the App cannot pin a certificate, instead the
connection is now established through the rust backend and forwarded
to Tauri through a HTTP proxy (local to your phone only and further
protected through a secret as loopback isnt isolated between apps on
android). This works and is a fine implementation however I would like
to rewrite this is the future to use Tauris IPC protocol instead of a
loopback.
This also makes a PWA version of the app harder to achieve.
Julian