WIP: BlockCategoryDisplay: Re-instantiate preview blocks that have changed

Author: dylanmccall

addons/block_code/ui/picker/categories/block_category_display.gd

@@ -22,6 +22,7 @@ var _blocks: Dictionary  # String, Block
 
 func _ready():
 	_label.text = title  # category.name if category != null else ""
+	_context.changed.connect(_on_context_changed)
 	_update_label()
 	_update_blocks()
 
@@ -73,3 +74,12 @@ func _get_or_create_block(block_definition: BlockDefinition) -> Block:
 
 	return block
 
+
+func _on_context_changed():
+	if _context.block_script == null:
+		return
+
+	# TODO: Re-instantiate blocks that we know might have changed.
+	#       Only do this if necessary?
+
+	_update_blocks()