Scope Tailwind base variables to container class

[ancaverniceanu]

Scope Tailwind base variables to container class to avoid global bleed.

[dulnan]

Very nice, this will improve the DX quite a bit!

I would add the vuepal-root class directly to the admin toolbar and local tasks component, so they don't have to be wrapped in a vuepal-root. That way we can release this without a breaking change