Better behaviour for login page

lib/pages/login_page.dart

@@ -1,13 +1,13 @@
 import 'dart:async';
 
 import 'package:animated_background/animated_background.dart';
+import 'package:dio/dio.dart';
 import 'package:flutter/material.dart';
 import 'package:get/get.dart';
 import 'package:tuuli_api/tuuli_api.dart';
 import 'package:tuuli_app/api_controller.dart';
 
-class LoginPageController extends GetxController
+class LoginPageController extends GetxController {
-    with GetSingleTickerProviderStateMixin {
   final _login = "".obs;
   String get login => _login.value;
   set login(String value) => _login.value = value;
@@ -37,13 +37,31 @@ class LoginPageController extends GetxController
         if (resp.statusCode == 200 && respData != null) {
           final accessToken = respData.accessToken;
           Get.find<ApiController>().token = accessToken;
+          WidgetsBinding.instance.addPostFrameCallback((_) {
             Get.offAllNamed("/home");
+          });
         } else {
           Get.snackbar(
             "Login failed",
             resp.statusMessage ?? "Unknown error",
           );
         }
+      } on DioError catch (e) {
+        final errorData = e.response?.data;
+        if (errorData != null) {
+          final error = errorData["error"];
+          if (error != null) {
+            Get.snackbar(
+              "Login failed",
+              "$error",
+            );
+          }
+        } else {
+          Get.snackbar(
+            "Login failed",
+            "$e",
+          );
+        }
       } catch (e) {
         Get.snackbar(
           "Login failed",
@@ -65,13 +83,9 @@ class LoginPage extends GetView<LoginPageController> {
     return Scaffold(
       body: Stack(
         children: [
-          AnimatedBackground(
+          const SizedBox.square(
-            behaviour: RandomParticleBehaviour(),
-            vsync: controller,
-            child: const SizedBox.square(
             dimension: 0,
           ),
-          ),
           Row(
             mainAxisAlignment: MainAxisAlignment.start,
             crossAxisAlignment: CrossAxisAlignment.stretch,