Version 4.4.0

This is a minor release of Google Play Music Desktop Player

Here is a quick run down of all things that have changed.

• NEW: You can now enable the windows 10 media service without the volume overlay thing
• NEW: MPRIS service now listens for, and emits volume events
• NEW: Added a keyboard shortcut for showing album art
• FIX: Whole bunch of random "null" errors
• FIX: Bunch of dark theme issues have been resolved
• FIX: Last.FM scrobble logic now works better

Thanks to all the people who have helped with these features and fixes.