Trying to do the notification for all users.

lib/components/activities/add_activity_bottom_sheet.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:firebase_auth/firebase_auth.dart';
 import 'dart:math' as math;
 import '../../blocs/activity/activity_bloc.dart';
 import '../../blocs/activity/activity_event.dart';
@@ -368,6 +369,7 @@ class _AddActivityBottomSheetState extends State<AddActivityBottomSheet> {
         votes: {},
         createdAt: DateTime.now(),
         updatedAt: DateTime.now(),
+        createdBy: FirebaseAuth.instance.currentUser?.uid,
       );
 
       context.read<ActivityBloc>().add(AddActivity(activity));