WP 5.5: full width blocks not stretched edge to edge in editor

[dreamwhisper]

Describe the bug
WordPress 5.5 adjusted padding to add 10px on .editor-styles-wrapper as part of WordPress/gutenberg#22213

There, full width blocks were adjusted to add right/left -10px margin to compensate. However, the CSS used is this:

.block-editor-block-list__layout.is-root-container > .wp-block[data-align="full"] {
	margin-left: -10px;
	margin-right: -10px;
}

Atomic Blocks has an outer wrapper on blocks like Container and Advanced Columns so > .wp-block[data-align="full"] won't apply. As such, the blocks are no longer "full" width.

To Reproduce
Steps to reproduce the behavior:

1. Using 5.5, add a Container and Advanced Columns block.
2. Set it to full width.
3. Note that the block does not stretch edge to edge.

Expected behavior
Full width blocks with stretch edge to edge in the block editor.

Screenshots

Additional context
Add any other context about the problem here.

[nickcernis]

Looks like we need to port the fix from https://github.com/studiopress/genesis-blocks/pull/45.