Improve account suspension speed and completeness (#9290)

- Some associations were missing from the clean-up
- Some attributes were not reset on suspension
- Skip federation and streaming deletes when purging a dead domain
- Move account association definitions to concern

app/workers/admin/suspension_worker.rb

@@ -6,6 +6,6 @@ class Admin::SuspensionWorker
   sidekiq_options queue: 'pull'
 
   def perform(account_id, remove_user = false)
-    SuspendAccountService.new.call(Account.find(account_id), remove_user: remove_user)
+    SuspendAccountService.new.call(Account.find(account_id), including_user: remove_user)
   end
 end