Blocks container labels should match the Array and Tab labels. Uses same styling approach as Array labels. ### Before <img width="229" height="260" alt="CleanShot 2025-07-24 at 12 26 38" src="https://github.com/user-attachments/assets/9c4eb7c5-3638-4b47-805b-1206f195f5eb" /> ### After <img width="245" height="259" alt="CleanShot 2025-07-24 at 12 27 00" src="https://github.com/user-attachments/assets/c04933b4-226f-403b-9913-24ba00857aab" />