Support for RustRover

[maciejlewandowskii]

RustRover is now in stable release, so it would be nice if you add support for it.

[ivanporty]

Thanks for request @maciejlewandowskii. Do you mean Cloud Code support, Gemini Code Assist support, both, and which is more important to you?

[jerryan999]

Gemini Code Assist support is what we need most