feat: app variant

Author: ahmedAlaaInstabug

example/lib/main.dart

@@ -3,7 +3,6 @@ import 'dart:developer';
 import 'dart:io';
 import 'dart:convert';
 
-import 'package:dio/dio.dart';
 import 'package:flutter/material.dart';
 import 'package:instabug_flutter/instabug_flutter.dart';
 import 'package:instabug_flutter_example/src/components/apm_switch.dart';