bugfix: migrate organization usage counts to be statement level

[cdxker]

Migrates organization_usage_counts triggers from row level queries to statement level queries. Row level need to acquire a lock on the full table which can very easily cause a deadlock since so many different inserts trigger it.

Things tested to be working:

• dataset_count increases and decreases properly
• user_count
• file_storage
• chunk_count
  • clearing dataset possible edge case
  • deleting dataset possible edge case
• message_count (test that deletes do not remove count).