ControlConfig#component_params does not take into consideration keyword arguments

[manuelpuyol]

👋 Hello there!

In primer_view_components we use kwargs for most of our components, so we can easily modify some simpler css (like margins, background colors...). An example:

module Primer
  class BoxComponent < Primer::Component
    def initialize(**system_arguments)

When I'm writing a story, I wanted to show examples with different margins. This would be something like

class Primer::BoxComponentStories < ViewComponent::Storybook::Stories
  layout "storybook_preview"

  story(:box) do
    controls do
      select(:m, [1,2,3], 1)
    end

    content do
      "This is a div"
    end
  end
end

which would be the same as calling Primer::BoxComponent.new(m: 1)

But, this is raising an error due the component_params validation, since m is not directly defined as a parameter name from initialize

https://github.com/jonspalmer/view_component_storybook/blob/1631e9cfcbaa9936f86f8b9d5f2bda44ede48f1a/lib/view_component/storybook/controls/control_config.rb#L33-L35

a fix would be to check if there is a :keyrest type parameter, which indicates that the method receives a **kwarg parameter and in that case any control name should be accepted.