feat(auth): add Discord auth boilerplate

.env.example

@@ -38,10 +38,6 @@ DB_DATABASE=laravel
 DB_USERNAME=root
 DB_PASSWORD=
 
-# Bot token for the Discord notification integration.
-# Create an application & bot here: https://discord.com/developers/applications
-DISCORD_BOT_TOKEN=
-
 RECAPTCHA_SITE_KEY=
 RECAPTCHA_PRIVATE_KEY=
 RECAPTCHA_VERIFY_URL="https://www.google.com/recaptcha/api/siteverify"
@@ -53,6 +49,10 @@ MOJANG_API_URL="https://api.mojang.com"
 IPGEO_API_KEY=""
 IPGEO_API_URL="https://api.ipgeolocation.io/ipgeo"
 
+DISCORD_CLIENT_ID=
+DISCORD_CLIENT_SECRET=
+DISCORD_BOT_TOKEN=
+
 ARCANEDEV_LOGVIEWER_MIDDLEWARE=web,auth,can:admin.maintenance.logs.view
 
 RELEASE=0.8.0