feat: login api

lib/presentation/components/toast/flushbar.dart

@@ -2,6 +2,7 @@ import 'package:another_flushbar/flushbar.dart';
 import 'package:flutter/material.dart';
 
 import '../../../common/theme/theme.dart';
+import '../../../domain/auth/auth.dart';
 
 class AppFlushbar {
   static void showSuccess(BuildContext context, String message) {
@@ -40,4 +41,14 @@ class AppFlushbar {
       margin: const EdgeInsets.all(12),
     ).show(context);
   }
+
+  static void showAuthFailureToast(BuildContext context, AuthFailure failure) =>
+      showError(
+        context,
+        failure.map(
+          serverError: (value) => value.failure.toStringFormatted(context),
+          dynamicErrorMessage: (value) => value.erroMessage,
+          unexpectedError: (value) => 'Error has eccoured',
+        ),
+      );
 }