This event is triggered when a new block is added to the editor.
Specifies the block model that was added.
number
Specifies the index where the block was added.
boolean
Indicates whether the user directly interacted with the block (e.g., adding it manually).
If false, the block was added programmatically.
boolean
Indicates if the block was added via paste action.
string
Specifies the ID of the parent block (if any).