feature: yaml-language server autocompletion improvement

[Dogacel]

Did you check the docs?

• I have read all the LazyVim docs

Is your feature request related to a problem? Please describe.

My kubernetes yaml files did not show autocomplete out of the box. So I tried setting the schema manually however couldn't find many docs.

Describe the solution you'd like

• Improve documentation to show how to set schemas.
  • AFAIK only way to set it is to put a comment on top such as # yaml-language-server: $schema=https://kubernetesjsonschema.dev/v1.10.3-standalone/service-v1.json however there must be an easier way that also uses b0o/SchemaStore.nvim". I feel like I am not using that schema store somehow.
• Make a LazyVim Extra plugin
  • The extra plugin can be setup as the following: [Feature] LazyVim setup someone-stole-my-name/yaml-companion.nvim#44
  • Plugin contains both schema selector and lualine upgrade

Describe alternatives you've considered

I am not aware of any alternatives.

Additional context

Here is a PR to showcase:

• fix: add yaml companion to yaml setup #2907

[folke]

See #2907 (comment)