How To Change Flutter Textformfield Outline Border Width

import 'package:flutter/material.dart';
void main() {
  runApp(const MyApp());
}
class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Homepage(),
    );
  }
}
class Homepage extends StatefulWidget {
  @override
  State<Homepage> createState() => _HomepageState();
}
class _HomepageState extends State<Homepage> {
  @override
  Widget build(BuildContext context) {
    return SafeArea(
        child: Scaffold(
      body: Center(
          child: Padding(
              padding: EdgeInsets.symmetric(horizontal: 40),
              child: TextFormField(
                style: TextStyle(color: Colors.blue),
                decoration: InputDecoration(
                  enabledBorder: OutlineInputBorder(
                      borderRadius: BorderRadius.circular(50)
                          .copyWith(bottomRight: Radius.circular(0)),
                      borderSide: BorderSide(color: Colors.blue, width: 4)),
                  focusedBorder: OutlineInputBorder(
                      borderRadius: BorderRadius.circular(50)
                          .copyWith(bottomRight: Radius.circular(0)),
                      borderSide: BorderSide(color: Colors.blue, width: 3)),
                ),
              ))),
    ));
  }
}