Release v3.30.0-beta.1 (#2147)

Improvements for all users:

• All child moves (i.e. document moved because their parent directory was moved)
  will now be notified to the GUI so the child documents paths can be updated in
  the list of recently synchronized documents.
• We've introduced a mechanism to detect dependencies between multiple changes
  on the same side (i.e. the local filesystem or the remote Cozy) and
  synchronize them in the right order. We've added a few dependencies that let
  us solve situations that were known to fail (e.g. trashing directories as a
  whole instead of trashing every element separately) and we will add more as
  needed in the future.
• As stated above, directories will now be trashed as a whole but we'll now also
  keep empty directories in the trash instead of erasing them. It should be
  easier for you to find deleted elements in the trash and restore entire
  directories.
• We've decided to stop linking a local and remote directories at the same
  location during the synchronization as this could lead to issues (e.g. if one
  of them was moved and the other created).
  We'll handle this situation as a conflict instead.
• When propagating documents to the remote Cozy, we should now always use the
  correct parent directory which is not necessarily the remote folder with this
  path.
• The propagation of documents to the remote Cozy should now be slightly faster
  as we make fewer requests to the remote Cozy (i.e. we don't look for the
  parent directory on the remote Cozy anymore).
• Name conflicts detected during the synchronization phase will now be notified
  to you within the main window. Their resolution will only happen on your
  behalf via the action button within the error message.

Improvements for Windows users:

• The detection of local overwriting moves should be more reliable. This also
  improves the propagation of remote overwriting moves to the local filesystem.
• The detection of local directory moves when they have a lot of content should
  be more reliable. This also improves the propagation of remote directory moves
  to the local filesystem.

Improvements for macOS users:

• We've fixed an issue in our local changes watcher that could lead to
  synchronizing a file deletion when actually replacing it with another one on
  the local filesystem.
• We've fixed an issue in our local changes watcher that could lead to
  synchronization errors due to invalid metadata when a file was moved then
  modified in a short period of time or modified multiple times in a short
  period of time, leaving you with a blocked synchronization until the file is
  modified, moved or removed.
• Deletions of children of moved directories while the client was stopped should
  now be correctly detected and propagated to the remote Cozy.

See also known issues.

Happy syncing!