Add icon support for CUE files

I was wondering is there a plan to support a higher number of file associations with their respective icons? For example, can I expect adding a support for [CUE](https://cuelang.org/) files? Right now they fallback to default file icon:

![Image](https://github.com/user-attachments/assets/29feb214-2a7c-498d-a0b0-c5c6534dc650)