added ingredients list and dropdown textfield

lib/widgets/dropdown_textfield.dart

@@ -0,0 +1,41 @@
+import 'package:flutter/material.dart';
+
+class DropdownTextfield extends StatefulWidget {
+  const DropdownTextfield({super.key});
+
+  @override
+  State<DropdownTextfield> createState() => _DropdownTextfieldState();
+}
+
+class _DropdownTextfieldState extends State<DropdownTextfield> {
+  List<DropdownMenuItem> get _getDropdownItems {
+    return [
+      const DropdownMenuItem(
+        child: Text('rsitensroe'),
+        value: 1,
+      ),
+      const DropdownMenuItem(
+        child: Text('rstiersnmti'),
+        value: 2,
+      )
+    ];
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final dropdownValue = _getDropdownItems.first.value;
+    return SizedBox(
+      width: 500,
+      child: TextField(
+        decoration: InputDecoration(
+            suffix: DropdownButton(
+          items: _getDropdownItems,
+          onChanged: _onDropdownChanged,
+          value: dropdownValue,
+        )),
+      ),
+    );
+  }
+
+  void _onDropdownChanged(value) {}
+}