Improved user experience, bugfixes!

Added

• Added thread_contact_silently to allow opening threads silently by default. (PR #2887)

Fixed

• Permission levels were not respected.
• perms remove was not working.
• logs and block would not recognise users in a seperate server setup.
• Custom emojis were not working with confirm_thread_creation.

Internal

• Optimised perms get, bot should respond faster now.