Add periodic reconnection configuration to mautrix-facebook bridge

roles/matrix-bridge-mautrix-facebook/templates/config.yaml.j2

@@ -129,6 +129,16 @@ bridge:
         # the bridge was disconnected.
         # Set to 0 to disable backfilling missed messages.
         missed_limit: 1000
+    # Interval in seconds in which to automatically reconnect all users.
+    # This can be used to automatically mitigate the bug where Facebook stops sending messages.
+    # Set to -1 to disable periodic reconnections entirely.
+    periodic_reconnect_interval: -1
+    # What to do in periodic reconnects. Either "refresh" or "reconnect"
+    periodic_reconnect_mode: refresh
+    # The number of seconds that a disconnection can last without triggering an automatic re-sync
+    # and missed message backfilling when reconnecting.
+    # Set to 0 to always re-sync, or -1 to never re-sync automatically.
+    resync_max_disconnected_time: 5
 
     # Permissions for using the bridge.
     # Permitted values: