Remake dashboard

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Update flutter version

lib/models/widget.dart

@@ -0,0 +1,19 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'generated/widget.freezed.dart';
+
+@freezed
+class ActivateState with _$ActivateState {
+  const factory ActivateState({
+    required bool active,
+  }) = _ActivateState;
+}
+
+@freezed
+class CommonMessage with _$CommonMessage {
+  const factory CommonMessage({
+    required String id,
+    required String text,
+    @Default(Duration(seconds: 3)) Duration duration,
+  }) = _CommonMessage;
+}