fix: fix adding a second channel to a community disapearing

Fixes #1953

src/app/chat/views/communities.nim

@@ -208,7 +208,7 @@ QtObject:
         return "Chat was not created. Please try again later"
 
       self.joinedCommunityList.addChannelToCommunity(communityId, chat)
-      discard self.activeCommunity.chats.addChatItemToList(chat)
+      self.activeCommunity.addChatItemToList(chat)
     except Exception as e:
       error "Error creating the channel", msg = e.msg
       result = fmt"Error creating the channel: {e.msg}"

src/app/chat/views/community_item.nim

@@ -133,6 +133,11 @@ QtObject:
     self.chats.setChats(chats)
     self.chatsChanged()
 
+  proc addChatItemToList*(self: CommunityItemView, chat: Chat) =
+    self.communityItem.chats.add(chat)
+    discard self.chats.addChatItemToList(chat)
+    self.chatsChanged()
+
   QtProperty[QVariant] chats:
     read = getChats
     notify = chatsChanged