chore: update docs

Author: hunghg255

docs/guide/bubble-menu.md

@@ -147,4 +147,4 @@ The system provides the following default bubble menus:
 | RichTextBubbleExcalidraw   | Provides excalidraw-related operations like size, link , etc.  | excalidraw          |
 | RichTextBubbleMermaid   | Provides mermaid-related operations like size, link , etc.  | mermaid          |
 | RichTextBubbleTwitter   | Provides twitter-related operations like size, link , etc.  | twitter          |
-| RichTextBubbleMenuDrag  | Provides a drag handle to move the bubble menu around the editor area.                       | N/A           |
+| RichTextBubbleMenuDragHandle  | Provides a drag handle to move the bubble menu around the editor area.                       | N/A           |