fix minor bug with notification handling

src/Model/Chat/chatModel.ts

@@ -103,7 +103,7 @@ export default class ChatModel {
 
         this.addMessage(chatMessage);
 
-        if (chatMessage.stringifiedFile != undefined) return;
+        if (chatMessage.stringifiedFile) return;
         this.setReadStatus(true);
     };
 

src/ViewModel/Global/notificationViewModel.ts

@@ -17,6 +17,8 @@ export default class NotificationViewModel {
             NotificationViewModel.createNotification(message);
         if (this.seenMessageIds.has(message.id)) return;
 
+        if (this.chatListViewModel.selectedChat.value == undefined) return;
+
         const currentChat =
             this.chatListViewModel.selectedChat.value.chatModel.info
                 .primaryChannel;