Feature Request: Allow to specify settings for YAML formatting

[r-heimann]

Is your enhancement related to a problem? Please describe.

I am unsure if this is the right repository to ask for this feature, if its wrong please let me know.

I really enjoy using the built-in yaml formatting in VS Code, but with prettier (and now #1222) there doesn't seem to be any way to adjust/configure the formatter. It would be very useful for users to allow adjustments on how the yaml file is formatted (for example, i would like more space between groups of resources for easier yaml reading).

Describe the solution you would like

A VS Code Setting that allows the users to modify certain formatting settings or a configuration file somewhere else.

Describe alternatives you have considered

Use 3rd-party tools to format yaml.

Additional context

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[datho7561]

Now that we don't rely on prettier for formatting, we might be able to expose more formatting settings, and I don't think it'll require much more work (outside of maybe writing the tests for it). I think I want to wait a bit to see if there's any bugs we need to address related to moving off prettier before doing this, though.