New features:
* Battery improvements: wakelock disabled by default (#76)
* Dark mode: Allow changing app appearance (#102)
* Report logs: Copy/export logs to help troubleshooting (#94)
* WebSockets (experimental): Use WebSockets to subscribe to topics (#96, #100, #97)
* Show battery optimization banner (#105)

Bug fixes:
* Support for binary UnifiedPush messages (#101)

Notes:
* The foreground wakelock is now disabled by default
* The service restarter is now scheduled every 3h instead of every 6h
