ajustes do historico escolar e carteirinha

lib/main.dart

@@ -1,5 +1,6 @@
 import 'dart:io';
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 import 'package:flutter_localizations/flutter_localizations.dart';
 import 'package:rkm_educa_app/telas/tela_splash.dart';
 
@@ -12,6 +13,8 @@ class PostHttpOverrides extends HttpOverrides{
 }
 
 void main() {
+  WidgetsFlutterBinding.ensureInitialized();
+  SystemChrome.setPreferredOrientations([DeviceOrientation.portraitUp]);
   HttpOverrides.global = new PostHttpOverrides();
   runApp(MyApp());
 }