Component update: simple file upload

add dashed border to simple file upload basic default component
 
<img width="850" alt="Image" src="https://github.com/user-attachments/assets/d3211e56-afa8-442f-986a-4fa0043baa8f" />

<img width="551" alt="Image" src="https://github.com/user-attachments/assets/ae2c0f9f-4b80-4af7-9e4b-58931700bb18" />