Fix invites not being disabled upon account suspension (#11412)

* Disable invite links from disabled/suspended users

* Add has_many invites relationship to users

* Destroy unused invites when suspending an account

app/services/suspend_account_service.rb

@@ -66,6 +66,7 @@ class SuspendAccountService < BaseService
       @account.user.destroy
     else
       @account.user.disable!
+      @account.user.invites.where(uses: 0).destroy_all
     end
   end