[@container] Add support for scroll-state(overflowing) axis
Add new values for matching axis instead of edge for overflowing: block,
inline, x, y.
These are convenience keywords. For instance:
scroll-state(overflowing: x)
is the same as:
scroll-state((overflowing: left) or (overflowing: right))
Based on request in [1]
Bug: 367764865
Change-Id: I125db5e5eced86da6404aa0bc5469830278d0ca9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6022915
Reviewed-by: Anders Hartvoll Ruud andruud@chromium.org
Commit-Queue: Rune Lillesveen futhark@chromium.org
Cr-Commit-Position: refs/heads/main@{#1386111}