fix: multiple bug fixes

isolated users, db backup, weird disconnect issues for long voice sessions,

toju-app/src/app/store/rooms/room-state-sync.effects.ts

@@ -48,6 +48,7 @@ import {
   buildKnownUserExtras,
   isWrongServer,
   resolveRoom,
+  reconcileRoomSnapshotChannels,
   sanitizeRoomSnapshot,
   normalizeIncomingBans,
   getPersistedCurrentUserId
@@ -122,7 +123,8 @@ export class RoomStateSyncEffects {
             const actions: Action[] = [
               UsersActions.syncServerPresence({
                 roomId: signalingMessage.serverId,
-                users: syncedUsers
+                users: syncedUsers,
+                connectedPeerIds: this.webrtc.getConnectedPeers()
               })
             ];
 
@@ -641,7 +643,10 @@ export class RoomStateSyncEffects {
     if (!room || !incomingRoom)
       return EMPTY;
 
-    const roomChanges = sanitizeRoomSnapshot(incomingRoom);
+    const roomChanges = {
+      ...sanitizeRoomSnapshot(incomingRoom),
+      channels: reconcileRoomSnapshotChannels(room.channels, incomingRoom.channels)
+    };
     const bans = normalizeIncomingBans(room.id, event.bans);
 
     return this.syncBansToLocalRoom(room.id, bans).pipe(