Adds dynamic screen height to Tailwind for Cart Drawer

[benjaminsehl]

Description

Today the cart drawer uses svh when supported, as the height. This means that if the user has scrolled, the cart drawer will not fill the page (see screenshot).

We still want to keep svh as the main way to interact with h-screen as it's most often used for full bleed Hero banners (and similar) where you don't want the height to change (too jarring). However specifically on the cart drawer, this should be dynamic, as you can only scroll within the pane when it's open.

This also updates @headlessui to 1.7.0 to resolve a bug found in scroll lock: tailwindlabs/headlessui#949

Before submitting the PR, please make sure you do the following:

• Read the Contributing Guidelines
• Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123)
• Update docs in this repository according to your change
• Run yarn changeset add if this PR cause a version bump based on Keep a Changelog and adheres to Semantic Versioning

[lordofthecactus]

✅ I was reading about dvh. Neat!