Fix DirectEdit unlock issue with missing Engine

nxdrive.direct_edit Cannot unlock document '/UID_file-content/file.docx'
Traceback (most recent call last):
 File "nxdrive\direct_edit.py", line 479, in _handle_lock_queue
 File "nxdrive\direct_edit.py", line 511, in _send_lock_status
KeyError: 'cf92552e289611e9a04e9cda3ee6307e'

diff --git a/nxdrive/direct_edit.py b/nxdrive/direct_edit.py
index 8685c180..7e1da9f9 100644
--- a/nxdrive/direct_edit.py
+++ b/nxdrive/direct_edit.py
@@ -525,9 +525,8 @@ class DirectEdit(Worker):
 
     def _send_lock_status(self, ref: str) -> None:
         manager = self._manager
-        for engine in manager._engine_definitions:
-            dao = manager._engines[engine.uid]._dao
-            state = dao.get_normal_state_from_remote(ref)
+        for engine in manager._engines.values():
+            state = engine._dao.get_normal_state_from_remote(ref)
             if state:
                 path = engine.local_folder / state.local_path
                 manager.osi.send_sync_status(state, path)