Latest release shadowing issue

[Palke]

There seems to be an issue related to the component shadowing (Footer, Header) causing that Shadowed components are ignored and instead default props are rendered.

You can see the issue on currently deployed GTC doc site: https://gatsby.carbondesignsystem.com/

Expected:

Current:

This issue seems to be related to the v2 GTC as I had the same result updating one of my site.

@vpicone

[vpicone]

This issue is also occurring in the Carbon and IDL PRs:
carbon-design-system/carbon-website#2416
carbon-design-system/design-language-website#968

[vpicone]

Some solid debugging info from @Palke

Related issues:
gatsbyjs/gatsby#30435
gatsbyjs/gatsby#31389
Tried to alter the "components" location and understand why most of them were working, and few not.

• Footer.js file
  not working properly
• Footer folder / Footer.js file
  Crashing browser
• Footer folder / index.js file
  Working

As this behaviour is a bit different than it was previously it might end up being breaking change with easy fix, just so you could take a look on it and verify my findings.

Tried the same with Header.js file that is not working either now, moving the file into Header folder and changing the file name to index.js did work too