criado os widgets dropdown_button_default.dart, subtitle_containers.dart, alert_dialog_default.dart e title_containers.dart.

e ajustada a tela main_procedures_screen.dart

lib/widgets/title_containers.dart

@@ -0,0 +1,22 @@
+import 'package:flutter/material.dart';
+import 'package:rkm/utils/color_palette.dart';
+import 'package:rkm/utils/const_variable.dart';
+import 'package:rkm/widgets/text_default.dart';
+
+class TitleContainers extends StatelessWidget {
+  String title;
+
+  TitleContainers({
+    required this.title
+});
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      padding: ConstVariable().marginHightInput,
+      width: double.infinity,
+      color: ColorPalette.titleContainer,
+      child: TextDefault(text: title,fontWeigth: FontWeight.bold,textAlign: TextAlign.center,color: ColorPalette.black54,),
+    );
+  }
+}