Release v3.39.0-beta.5 (#2326)

Improvements for all users:

• 🐛 Cozy Desktop will now stop its processes when power is suspended and restart
  them when power is resumed. This should speed up suspension and prevent
  unwanted wake ups in some situations but, mostly it will ensure that
  processes are fully functional when power is resumed (we could lose the
  remote watcher leading to missed remote changes).
• 🔧 The realtime remote changes detection feature is now hidden behind a flag so
  we can do more tests in live conditions before releasing it to everybody.
• 🐛 We fixed an issue in the detection of changes to synchronize (i.e. after
  they've been detected either on the local filesystem or the remote Cozy)
  which could lead to the synchronization process hanging until the application
  is restarted.

Improvements for macOS users:

• 🐛 We've made improvements to the local changes watcher to make sure that
  detected changes batches are not processed concurrently as this could lead to
  unexpected behavior. These also ensure that stopping the application while
  the initial local synchronization directory is being scanned will not lead to
  documents being sent to the trash without reason.

See also known issues.

Happy syncing!