feat: change profile button

lib/android/pages/nav_pages/main_page.dart

@@ -4,9 +4,6 @@ import 'package:ernaehrung/android/pages/nav_pages/progress_page.dart';
 import 'package:ernaehrung/android/pages/nav_pages/today_page.dart';
 import 'package:ernaehrung/android/pages/settings.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter_profile_picture/flutter_profile_picture.dart';
-import 'package:hive/hive.dart';
-import '../../models/user.dart';
 import 'meal_plan_page.dart';
 
 class MainPage extends StatefulWidget {
@@ -40,7 +37,6 @@ class MainPageState extends State<MainPage> {
 
   @override
   Widget build(BuildContext context) {
-    final Box box = Hive.box<User>("USER_BOX");
     return Scaffold(
       extendBodyBehindAppBar: false,
       appBar: AppBar(
@@ -60,11 +56,20 @@ class MainPageState extends State<MainPage> {
                   MaterialPageRoute(builder: (context) => const SettingsPage()),
                 );
               },
-                child: ProfilePicture(
-                  name: "${box.get("FIRST_NAME_FIELD")}",
-                  radius: 16,
-                  fontsize: 14,
-                ))
+              style: ElevatedButton.styleFrom(
+                backgroundColor: Colors.green, // Set the background color to green
+              ),
+              child: Row(
+                children: const [
+                  Icon(
+                    Icons.account_circle,
+                    size: 30,
+                    color: Colors.white,
+                  ),
+                ],
+              ),
+            )
+
           ],
         ),
         backgroundColor: Colors.transparent,