Remove some clutter and the unused _counter variable

lib/main.dart

@@ -41,27 +41,11 @@ String encodePublicKey(OpenSSHEd25519KeyPair keyPair, {String comment = ''}) {
 class MyApp extends StatelessWidget {
   const MyApp({super.key});
 
-  // This widget is the root of your application.
   @override
   Widget build(BuildContext context) {
     return MaterialApp(
       title: 'Flutter Demo',
       theme: ThemeData(
-        // This is the theme of your application.
-        //
-        // TRY THIS: Try running your application with "flutter run". You'll see
-        // the application has a purple toolbar. Then, without quitting the app,
-        // try changing the seedColor in the colorScheme below to Colors.green
-        // and then invoke "hot reload" (save your changes or press the "hot
-        // reload" button in a Flutter-supported IDE, or press "r" if you used
-        // the command line to start the app).
-        //
-        // Notice that the counter didn't reset back to zero; the application
-        // state is not lost during the reload. To reset the state, use hot
-        // restart instead.
-        //
-        // This works for code too, not just values: Most code changes can be
-        // tested with just a hot reload.
         colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
       ),
       home: const MyHomePage(title: 'LeineLab e.V. Key App'),
@@ -72,15 +56,6 @@ class MyApp extends StatelessWidget {
 class MyHomePage extends StatefulWidget {
   const MyHomePage({super.key, required this.title});
 
-  // This widget is the home page of your application. It is stateful, meaning
-  // that it has a State object (defined below) that contains fields that affect
-  // how it looks.
-
-  // This class is the configuration for the state. It holds the values (in this
-  // case the title) provided by the parent (in this case the App widget) and
-  // used by the build method of the State. Fields in a Widget subclass are
-  // always marked "final".
-
   final String title;
 
   @override
@@ -88,22 +63,12 @@ class MyHomePage extends StatefulWidget {
 }
 
 class _MyHomePageState extends State<MyHomePage> {
-  int _counter = 0;
   int navIndex = 0;
   OpenSSHEd25519KeyPair? keyPair;
   String _output = '';
   String key = '';
 
   Future<void> _incrementCounter() async {
-    setState(() {
-      // This call to setState tells the Flutter framework that something has
-      // changed in this State, which causes it to rerun the build method below
-      // so that the display can reflect the updated values. If we changed
-      // _counter without calling setState(), then the build method would not be
-      // called again, and so nothing would appear to happen.
-      _counter++;
-    });
-
     if (navIndex == 0) {
       SSHSocket? socket;
 
@@ -158,34 +123,12 @@ class _MyHomePageState extends State<MyHomePage> {
 
   @override
   Widget build(BuildContext context) {
-    // This method is rerun every time setState is called, for instance as done
-    // by the _incrementCounter method above.
-    //
-    // The Flutter framework has been optimized to make rerunning build methods
-    // fast, so that you can just rebuild anything that needs updating rather
-    // than having to individually change instances of widgets.
-
     final String outputText = _output.isNotEmpty
         ? 'Output: $_output'
         : 'Press the button to run a command.';
 
     final bodyComponentMain = Center(
-      // Center is a layout widget. It takes a single child and positions it
-      // in the middle of the parent.
       child: Column(
-        // Column is also a layout widget. It takes a list of children and
-        // arranges them vertically. By default, it sizes itself to fit its
-        // children horizontally, and tries to be as tall as its parent.
-        //
-        // Column has various properties to control how it sizes itself and
-        // how it positions its children. Here we use mainAxisAlignment to
-        // center the children vertically; the main axis here is the vertical
-        // axis because Columns are vertical (the cross axis would be
-        // horizontal).
-        //
-        // TRY THIS: Invoke "debug painting" (choose the "Toggle Debug Paint"
-        // action in the IDE, or press "p" in the console), to see the
-        // wireframe for each widget.
         mainAxisAlignment: MainAxisAlignment.center,
         children: <Widget>[
           Text('Current output:'),
@@ -195,22 +138,7 @@ class _MyHomePageState extends State<MyHomePage> {
     );
 
     final bodyComponentInfo = Center(
-      // Center is a layout widget. It takes a single child and positions it
-      // in the middle of the parent.
       child: Column(
-        // Column is also a layout widget. It takes a list of children and
-        // arranges them vertically. By default, it sizes itself to fit its
-        // children horizontally, and tries to be as tall as its parent.
-        //
-        // Column has various properties to control how it sizes itself and
-        // how it positions its children. Here we use mainAxisAlignment to
-        // center the children vertically; the main axis here is the vertical
-        // axis because Columns are vertical (the cross axis would be
-        // horizontal).
-        //
-        // TRY THIS: Invoke "debug painting" (choose the "Toggle Debug Paint"
-        // action in the IDE, or press "p" in the console), to see the
-        // wireframe for each widget.
         mainAxisAlignment: MainAxisAlignment.center,
         children: <Widget>[Center(child: Text('Info\n\n$key'))],
       ),
@@ -229,21 +157,13 @@ class _MyHomePageState extends State<MyHomePage> {
     }
 
     return Scaffold(
-      appBar: AppBar(
+      appBar: AppBar(backgroundColor: Colors.amber, title: Text(widget.title)),
-        // TRY THIS: Try changing the color here to a specific color (to
-        // Colors.amber, perhaps?) and trigger a hot reload to see the AppBar
-        // change color while the other colors stay the same.
-        backgroundColor: Colors.amber,
-        // Here we take the value from the MyHomePage object that was created by
-        // the App.build method, and use it to set our appbar title.
-        title: Text(widget.title),
-      ),
       body: bodyComponent,
       floatingActionButton: FloatingActionButton(
         onPressed: _incrementCounter,
         tooltip: 'Increment',
         child: const Icon(Icons.add),
-      ), // This trailing comma makes auto-formatting nicer for build methods.,
+      ),
       drawer: Drawer(
         child: ListView(
           padding: EdgeInsets.zero,
@@ -258,11 +178,8 @@ class _MyHomePageState extends State<MyHomePage> {
             ListTile(
               title: const Text('Main Page'),
               onTap: () {
-                // Update the state of the app
-                // ...
-                // Then close the drawer
                 setState(() {
-                  navIndex = 0; // Example of changing the navigation index
+                  navIndex = 0;
                 });
                 Navigator.pop(context);
               },
@@ -270,11 +187,8 @@ class _MyHomePageState extends State<MyHomePage> {
             ListTile(
               title: const Text('Info Page'),
               onTap: () {
-                // Update the state of the app
-                // ...
-                // Then close the drawer
                 setState(() {
-                  navIndex = 1; // Example of changing the navigation index
+                  navIndex = 1;
                 });
                 Navigator.pop(context);
               },