reworked page layout inheritence

frontend/lib/pages/settings.dart

@@ -1,6 +1,6 @@
 import 'package:anyway/constants.dart';
+import 'package:anyway/layouts/scaffold.dart';
 import 'package:anyway/main.dart';
-import 'package:anyway/pages/base_page.dart';
 import 'package:flutter/material.dart';
 import 'package:permission_handler/permission_handler.dart';
 import 'package:shared_preferences/shared_preferences.dart';
@@ -14,42 +14,41 @@ class SettingsPage extends StatefulWidget {
   _SettingsPageState createState() => _SettingsPageState();
 }
 
-class _SettingsPageState extends State<SettingsPage> {
+class _SettingsPageState extends State<SettingsPage> with ScaffoldLayout {
   @override
-  Widget build(BuildContext context) {
-    return BasePage(
-      mainScreen: ListView(
-        padding: EdgeInsets.all(15),
-        children: [
-          // First a round, centered image
-          Center(
-            child: CircleAvatar(
-              radius: 75,
-              child: Icon(Icons.settings, size: 100),
-            )
-          ),
-          Center(
-            child: Text('Global settings', style: TextStyle(fontSize: 24))
-          ),
+  Widget build (BuildContext context) => mainScaffold(
+    context,
+    child: ListView(
+      padding: EdgeInsets.all(15),
+      children: [
+        // First a round, centered image
+        Center(
+          child: CircleAvatar(
+            radius: 75,
+            child: Icon(Icons.settings, size: 100),
+          )
+        ),
+        Center(
+          child: Text('Global settings', style: TextStyle(fontSize: 24))
+        ),
 
-          Divider(indent: 25, endIndent: 25, height: 50),
+        Divider(indent: 25, endIndent: 25, height: 50),
 
-          darkMode(),
-          setLocationUsage(),
-          setDebugMode(),
+        darkMode(),
+        setLocationUsage(),
+        setDebugMode(),
 
-          Divider(indent: 25, endIndent: 25, height: 50),
+        Divider(indent: 25, endIndent: 25, height: 50),
 
-          privacyInfo(),
-        ]
-      ),
-      title: Text('Settings'),
-      helpTexts: [
-        'Settings',
-        'Preferences set in this page are global and will affect the entire application.'
-      ],
-    );
-  }
+        privacyInfo(),
+      ]
+    ),
+    title: Text('Settings'),
+    helpTexts: [
+      'Settings',
+      'Preferences set in this page are global and will affect the entire application.'
+    ],
+  );
 
   Widget setDebugMode() {
     return Row(