Loader converted from java to kotlin.
Instead of loading libmpd when the service thread is started,
the service will not start the the thread if libmpd failed to load.
The loader is also accessed by the view data to let
the ui adjust if failed to load, by showing the failure reason
and disabling the Start MPD button.
Android will ignore permission request and will not show the request dialog
if the user's action implies "don't ask again."
This leaves the app in a crippled state and the user confused.
Google says "don't try to convince the user", so it returns false for `shouldShowRequestPermissionRationale`.
To help the user proceed, we show the `Request permission` button only if `shouldShowRequestPermissionRationale == true`
because there's a good chance the premission request dialog will not be ignored.
If `shouldShowRequestPermissionRationale == false` we instead show the "rationale" message and a button to open
the app info dialog where the user can explicitly grand the permission.
This changes lets us use the latest UI design from Google, Material 3.
Google only provides the material UI 3 themes for compose, compose only works with kotlin.
Most of the Android specific meson code has been removed and replaced with
the grade build system.
The new meson build scripts build and move the libmpd.so binaries into the correct
location that gradle expects. After than gradle handles building the rest of the Android app.
Icons and banners have been updated for the modern app packaging expectations.
For reference here was the figma template Google provides that I used to back the png versions
for older versions of Android <https://www.figma.com/community/file/1283953738855070149>
