Fix not being able to post empty statuses with attachments

Attachment field was filled in after the empty status check

lib/pleroma/web/common_api/activity_draft.ex

@@ -40,11 +40,11 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
     |> put_params(params)
     |> status()
     |> summary()
+    |> with_valid(&attachments/1)
     |> full_payload()
     |> expires_at()
     |> poll()
     |> with_valid(&in_reply_to/1)
-    |> with_valid(&attachments/1)
     |> with_valid(&in_reply_to_conversation/1)
     |> with_valid(&visibility/1)
     |> content()