[Golang] Package name highlight in imports

[mkvlrn]

I could not find a setting for this in zed's go settings or in the docs.

The official go extension for vscode adds some nice highlight to the package name in imports to match the usage in code.

It's just something that could be useful to glance over the imports and know how to use them.

vscode shown below

zed shown below

It's not a theme thing, I think. Both editors are using Catppuccin Mocha in the screenshots.