View Components: Recursively add scripts for subclass's parent component

[aduth]

🎫 Ticket

Extracted from #7761, related to LG-8771.

🛠 Summary of changes

Revises behavior of base script component to add scripts for the current class implementation, as well as any parent class scripts if the current component is subclassing another.

Essentially, given the following:

/components/parent_class_component.rb
/components/parent_class_component.ts
/components/child_class_component.rb
/components/child_class_component.ts

Before: When rendering ChildClassComponent, only child_class_component.ts would be added to the page
After: Both child_class_component.ts and parent_class_component.ts would be added to the page

Note that this seemed like an "obvious" behavior to me on Friday, though I'm of a less-strong opinion today, so happy to hear any dissenting opinion on whether it should work this way.

This should not impact any existing component, since while we do have some subclassing (e.g. DownloadButtonComponent < ButtonComponent), the parent classes in those cases do not have any associated scripts. This was discovered to be an issue while implementing #7761.

📜 Testing Plan

• rspec spec/components/base_component_spec.rb

[zachmargolis]

LGTM

[zachmargolis]

I think one of the things that was bugging me about the previous implementation was the specific BaseComponent being hardcoded, but switching this to superclass.respond_to?(:scripts) is way better IMO