fix(runtime): provide second arg to insertBefore

[tanner-reits]

What is the current behavior?

GitHub Issue Number: N/A

The runtime will throw an error when trying to apply styles to a Shadow component

What is the new behavior?

Styles will be applied without throwing an error

Documentation

N/A

Does this introduce a breaking change?

• Yes
• No

Testing

Other information

[christian-bromann]

👍

Thanks a lot!

[christian-bromann]

This patch has been published in Stencil v4.21.0!

[bkjohnson]

I think this might have caused a regression. When I upgrade stencil to 4.21.0 and do a build, I get a runtime error which causes tests to fail:

          Ferrum::JavaScriptError:
            NotFoundError: Failed to execute 'insertBefore' on 'Node': The node before which the new node is to be inserted is not a child of this node.
                at addStyle

[tanner-reits]

@bkjohnson If you have a reproduction case I can take a peek

[bkjohnson]

I couldn't isolate the issue enough to create a reproduction, but I've just upgraded to 4.22.1 successfully.