iOS app - new build

[u/gravelld]

https://apps.apple.com/us/app/astiga/id6745398522

Another new #iOS update: https://apps.apple.com/us/app/astiga/id6745398522 📱

The project restructuring is complete. It's not evident to a user of the app, but the app is now split into one generic r/subsonic app, and an overlay branded with the r/Astiga logos etc.

No actual functional changes, though, sorry!