Optional features are part of the crate — the project should say so

The configuration is more directed to the editor. So we must use config files for each editor. I wish to version control that analysis can be done even over certain optional features. I don't the editor is using, I actually don't want to care. I do know that the rust-analyser is more important, and I don't like to setup over and over again for every editor. Rust-analyser does have the feature. They also already use the cargo config. I think it is a project specific setting and not a editor one. Keeps my git clean. And I stumbled upon it because, setting it in the zed editor did not work -> so me thinking what could be better.