Failing to change `gopls` config for Helix

Howdy

​

I have read the docs and searched online, but I can't seem to change `gopls`'s behaviour in Helix.

This is one of the variations that I've tried that, by my grokking of the docs and `languages.toml`, should work? 😅
```
[language-server.gopls.config]
"ui.diagnostic.analyses" = { unusedvariable = false }

```

I'm using Helix v23.10 and `gopls` v0.14.0 on MacOS v14.0.

Tyvm 🙏