Add Thumbnail for ckan tools

Reference Image  (similar implementation) <img width="998" height="502" alt="Image" src="https://github.com/user-attachments/assets/9dc7d66a-05ee-4659-8ead-f3b794aea4dd" /> 

to-be implemented 

<img width="1298" height="681" alt="Image" src="https://github.com/user-attachments/assets/bcdc2dfd-b0a0-4a2d-b589-fc570d93d8c7" />