Release v3.39.0

[taratatach]

Improvements for all users:

• We will now fetch the latest changes from your Cozy as soon as they've
  been made (with some delay in case many changes were made). This
  feature is hidden behind a flag so we can do more tests in live
  conditions before releasing it to everybody.
• We fixed our network configuration as it was preventing the realtime
  manager, responsible for fetching changes from your Cozy as soon as
  they've bee made, to create a connection with the Cozy.
• OpenOffice lock files won't be synchronized anymore.
• The onboarding window will now honor _blank link targets during the
  onboarding process by opening the targeted URL in a default browser
  tab rather than a new Cozy Desktop window.
• 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).
• 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.