- Fixed white noice on lower volumes

- Stored volume as int so changing volume is faster
- Check for silence while changing volume so buffer is not checked twice

- Improved reading buffer size which hopefully fixes stuttering issues

- Do not change volume when volume is 100% because it does not change anything
- Better detection if mute option was used when restoring settings
- Load default values when IP or port are empty
- Permission button now directly changes to Start streaming after getting permissions
- Permission button now has a default button color so it is recognizable as a button
- Open app settings when permissions are not given so it can be changed manually
- Code cleanup

Merge remote-tracking branch 'origin/master'