Added create recipe page

lib/main.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:rezepte/pages/create_recipe_page.dart';
 import 'package:rezepte/pages/dashboard_page.dart';
 
 import 'theme.dart';
@@ -18,6 +19,7 @@ class MyApp extends StatelessWidget {
       darkTheme: darkTheme,
       routes: {
         Dashboard.routeName: (_) => const Dashboard(),
+        CreateRecipe.routeName: (_) => const CreateRecipe(),
       },
     );
   }

lib/pages/create_recipe_page.dart

@@ -0,0 +1,15 @@
+import 'package:flutter/material.dart';
+
+class CreateRecipe extends StatelessWidget {
+  const CreateRecipe({super.key});
+  static const routeName = '/createRecipe';
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('Create Recipe'),
+      ),
+    );
+  }
+}

lib/pages/dashboard_page.dart

@@ -1,15 +1,24 @@
 import 'package:flutter/material.dart';
+import 'package:rezepte/pages/create_recipe_page.dart';
 
 class Dashboard extends StatelessWidget {
   const Dashboard({super.key});
+
   static const routeName = '/';
 
+  void _onAddTapped(BuildContext context) =>
+      Navigator.of(context).pushNamed(CreateRecipe.routeName);
+
   @override
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
         title: const Text('Dashboard'),
       ),
+      floatingActionButton: FloatingActionButton(
+        onPressed: () => _onAddTapped(context),
+        child: const Icon(Icons.add),
+      ),
     );
   }
 }