Remove unused imports and code

lib/authentik_api.dart

@@ -1,8 +1,6 @@
 import 'dart:convert';
-import 'dart:io';
 
 import 'package:oauth2/oauth2.dart' as oauth2;
-import 'package:url_launcher/url_launcher.dart';
 
 Future<String> getSessionCookie(oauth2.Client client) async {
   final response0 = await client.get(

lib/main.dart

@@ -177,10 +177,6 @@ class _MyHomePageState extends State<MyHomePage> {
 
   @override
   Widget build(BuildContext context) {
-    final String outputText = _output.isNotEmpty
-        ? 'Output: $_output'
-        : 'Press the button to run a command.';
-
     final authentikApiState = context
         .watch<AuthentikUserSettingsChangeDialogState>();