Revert "LPS-44472 Prevent conflicts when adding system events"
LPS-44472 Add deletion events properly and supress asset's automatic deletions event creation because for layouts we need a special logic what handles the private layout property
LPS-44472 Import assets
LPS-44472 Add categorization section to layout form
LPS-44472 Source formatting
LPS-44472 Fix broken test
LPS-44472 Regen