bugfixes/prepare_for_first_unit (#8)

- update ui
- implement different features like restart
- bugfixes

Co-authored-by: pstruebi <struebin.patrick.com>
Reviewed-on: https://gitea.pstruebi.xyz/auracaster/bumble-auracast/pulls/8

README.md

@@ -75,6 +75,8 @@ stty -F /dev/ttyAMA3 -a | grep -o 'hupcl' || echo "-hupcl is set"
 # Audio latency
 if there is hearable audio error with aes67, tune sess.latency.msec in pipewire-aes67.conf
 
+if latency is piling up something may be blocking the event loop in multicast_server.py - the event loop must never block at any time
+
 ---
 
 After completing these steps, your device will be discoverable as `<hostname>.<domain>` (e.g., `box1.auracast.local`) on the local network via mDNS.