chore: Follow up todos

assets/l10n/intl_en.arb

@@ -2549,5 +2549,6 @@
   "noTodosYet": "No todos have been added to this chat yet. Create your first todo and start cooperating with others. 📝",
   "editTodo": "Edit todo",
   "pleaseAddATitle": "Please add a title",
-  "todoListChangedError": "Oops... The todo list has been changed while you edited it."
+  "todoListChangedError": "Oops... The todo list has been changed while you edited it.",
+  "todosUnencrypted": "Please notice that todos are visible by everyone in the chat and are not end to end encrypted."
 }

lib/pages/tasks/tasks_view.dart

@@ -69,6 +69,15 @@ class TasksView extends StatelessWidget {
                                 textAlign: TextAlign.center,
                               ),
                             ),
+                            const SizedBox(height: 16),
+                            SizedBox(
+                              width: 256,
+                              child: Text(
+                                L10n.of(context)!.todosUnencrypted,
+                                textAlign: TextAlign.center,
+                                style: const TextStyle(color: Colors.orange),
+                              ),
+                            ),
                           ],
                         )
                       : ReorderableListView.builder(