criada as telas tela_avisos.dart, tela_detalhes_avisos.dart e tela_contatos.dart

lib/main.dart

@@ -1,6 +1,6 @@
 import 'dart:io';
 import 'package:flutter/material.dart';
-import 'package:rkm_educa_app/screens/login_screen.dart';
+import 'package:rkm_educa_app/telas/tela_login.dart';
 
 class PostHttpOverrides extends HttpOverrides{
   @override
@@ -22,7 +22,7 @@ class MyApp extends StatelessWidget {
   Widget build(BuildContext context) {
     return MaterialApp(
       debugShowCheckedModeBanner: false,
-      home: LoginScreen(),
+      home: TelaLogin(),
     );
   }
 }