Update .env.example

Author: dimitrov-d

backend/.env.example

@@ -1,11 +1,11 @@
 APP_ENV=testing
 APP_SECRET=secret
 # URL of your frontend app
-APP_URL=localhost:3001
+APP_URL=localhost:3000
 LOG_TARGET=console
 
 API_HOST=localhost
-API_PORT=3000
+API_PORT=3001
 
 # Create a MySQL database, local or cloud
 MYSQL_HOST=mysql