Move config files to avoid cluttering project root

[Green-Avocado]

Thanks for your help with the addition of the config file. I based it off how the rls.toml file used to work, where the file was found in the root directory of the project. However, I think it would be better to store config files in a hidden directory, similar to how VSCode does.

[aminya]

What is the default path supported by rust-analyzer?

[Green-Avocado]

What is the default path supported by rust-analyzer?

As far as I know, rust-analyzer does not have a default path as it requires the client to send it the config.

[aminya]

What is the default path supported by rust-analyzer?

As far as I know, rust-analyzer does not have a default path as it requires the client to send it the config.

I think the current location is reasonable. If we want to avoid cluttering the project root, then it should go to the .config folder or something so different tools can put their config there.

[Green-Avocado]

Good idea yeah, I changed the location back to ./rust-analyzer.json and added a check for .config/rust-analyzer.json if the former doesn't exist.