v5.13.0

#1777

Updates

• 🔄️ Some refactoring on the codes
• 🔕 Stop sending pre-accepted messages to non-friends (061931e)

Fixes

• 🔨 Fixed duplicate message in the !help command (#1752) - @Nevskjij
• 🔨 Fixed bot not deleting the "refresh token" on Access Denied error (#1776) - @Nicklason
• 🔨 Fixed the !sku command (and other stuff) due to an empty effect name (TF2Autobot/node-tf2-schema@30e7ba4)