Try block toolbar inline edit slot

[talldan]

Description

Reverts #23613 and replaces it with a 'popover' style slot as advised by the a11y team in #24021 (comment).

How does this work?

This PR introduces a new slot on the toolbar BlockToolbarInlineEditSlot. When this slot contains a fill, it signals to a context provider that other toolbar content should be 'visually hidden' and only the fill should be rendered.

Additionally, anything rendered in the fill is wrapped in a PopoverWrapper (the same as the one introduced in #24429) which provides popover behaviors but is rendered inline.

How has this been tested?

This PR doesn't actually implement anything visible, but I've rebased #24021 on top of this, and that's the PR should be tested.

Screenshots

Types of changes

Checklist:

• My code is tested.
• My code follows the WordPress code style.
• My code follows the accessibility standards.
• My code has proper inline documentation.
• I've included developer documentation if appropriate.
• I've updated all React Native files affected by any refactorings/renamings in this PR.

[github-actions]

Size Change: -5.29 kB (0%)

Total Size: 1.2 MB

Filename	Size	Change
build/a11y/index.js	1.14 kB	+1 B
build/block-directory/index.js	8.41 kB	+1 B
build/block-editor/index.js	123 kB	-5.25 kB (4%)
build/block-editor/style-rtl.css	11 kB	-37 B (0%)
build/block-editor/style.css	11 kB	-36 B (0%)
build/block-library/index.js	135 kB	-14 B (0%)
build/block-serialization-default-parser/index.js	1.78 kB	+2 B (0%)
build/blocks/index.js	47.5 kB	-3 B (0%)
build/components/index.js	202 kB	-29 B (0%)
build/compose/index.js	9.42 kB	-3 B (0%)
build/core-data/index.js	12 kB	+20 B (0%)
build/data/index.js	8.44 kB	+12 B (0%)
build/dom/index.js	4.42 kB	-2 B (0%)
build/edit-navigation/index.js	10.4 kB	-4 B (0%)
build/edit-post/index.js	306 kB	+55 B (0%)
build/edit-site/index.js	19.6 kB	-6 B (0%)
build/edit-widgets/index.js	17.6 kB	+1 B
build/editor/index.js	45.3 kB	+3 B (0%)
build/element/index.js	4.45 kB	+1 B
build/format-library/index.js	7.48 kB	-8 B (0%)
build/i18n/index.js	3.55 kB	+1 B
build/keyboard-shortcuts/index.js	2.39 kB	-1 B
build/list-reusable-blocks/index.js	3.02 kB	+3 B (0%)
build/media-utils/index.js	5.12 kB	+1 B
build/notices/index.js	1.69 kB	-2 B (0%)
build/plugins/index.js	2.44 kB	+1 B
build/primitives/index.js	1.34 kB	-1 B
build/redux-routine/index.js	2.85 kB	+1 B
build/rich-text/index.js	13.7 kB	+3 B (0%)
build/server-side-render/index.js	2.61 kB	+1 B
build/token-list/index.js	1.24 kB	-2 B (0%)
build/url/index.js	4.06 kB	+1 B
build/viewport/index.js	1.74 kB	-2 B (0%)
build/warning/index.js	1.14 kB	+7 B (0%)

ℹ️ View Unchanged

Filename	Size	Change
build/annotations/index.js	3.52 kB	0 B
build/api-fetch/index.js	3.34 kB	0 B
build/autop/index.js	2.72 kB	0 B
build/blob/index.js	620 B	0 B
build/block-directory/style-rtl.css	943 B	0 B
build/block-directory/style.css	942 B	0 B
build/block-library/editor-rtl.css	8.59 kB	0 B
build/block-library/editor.css	8.59 kB	0 B
build/block-library/style-rtl.css	7.6 kB	0 B
build/block-library/style.css	7.59 kB	0 B
build/block-library/theme-rtl.css	741 B	0 B
build/block-library/theme.css	741 B	0 B
build/block-serialization-spec-parser/index.js	3.1 kB	0 B
build/components/style-rtl.css	15.5 kB	0 B
build/components/style.css	15.5 kB	0 B
build/data-controls/index.js	1.27 kB	0 B
build/date/index.js	31.9 kB	0 B
build/deprecated/index.js	772 B	0 B
build/dom-ready/index.js	568 B	0 B
build/edit-navigation/style-rtl.css	868 B	0 B
build/edit-navigation/style.css	871 B	0 B
build/edit-post/style-rtl.css	6.24 kB	0 B
build/edit-post/style.css	6.22 kB	0 B
build/edit-site/style-rtl.css	3.3 kB	0 B
build/edit-site/style.css	3.3 kB	0 B
build/edit-widgets/style-rtl.css	2.79 kB	0 B
build/edit-widgets/style.css	2.79 kB	0 B
build/editor/editor-styles-rtl.css	492 B	0 B
build/editor/editor-styles.css	493 B	0 B
build/editor/style-rtl.css	3.8 kB	0 B
build/editor/style.css	3.8 kB	0 B
build/escape-html/index.js	733 B	0 B
build/format-library/style-rtl.css	547 B	0 B
build/format-library/style.css	548 B	0 B
build/hooks/index.js	1.74 kB	0 B
build/html-entities/index.js	622 B	0 B
build/is-shallow-equal/index.js	711 B	0 B
build/keycodes/index.js	1.85 kB	0 B
build/list-reusable-blocks/style-rtl.css	476 B	0 B
build/list-reusable-blocks/style.css	476 B	0 B
build/nux/index.js	3.27 kB	0 B
build/nux/style-rtl.css	671 B	0 B
build/nux/style.css	668 B	0 B
build/priority-queue/index.js	789 B	0 B
build/shortcode/index.js	1.7 kB	0 B
build/wordcount/index.js	1.17 kB	0 B

_{compressed-size-action}

[afercia]

I'm not able to build this branch, getting a huge dump of errors apparently related to TypeScript and SVGs, see example below. Any idea what's going wrong?

packages/icons/src/library/trending-up.js:8:4 - error TS2741: Property 'path' is missing in type '{ d: string; }' but required in type 'Pick<SVGProps<SVGPathElement>, "string" | "end" | "local" | "color" | "clip" | "style" | "fill" | "stroke" | "x" | "y" | "alphabetic" | "hanging" | "ideographic" | ... 455 more ... | "zoomAndPan">'.

8  	<Path d="M3.445 16.505a.75.75 0 001.06.05l5.005-4.55 4.024 3.521 4.716-4.715V14h1.5V8.25H14v1.5h3.19l-3.724 3.723L9.49 9.995l-5.995 5.45a.75.75 0 00-.05 1.06z" />
   	 ~~~~


Found 372 errors.

[talldan]

Superseded by #25890