Focus return: make document.activeElement relative to ref

[ellatrix]

Description

There's no need to depend on document.activeElement on the consumer side. For the focussed node at the time of mount, we can look at the focus history that is provided. To ensure history, we can initialise the provider's history with document.activeElement.

How has this been 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: -1.62 kB (0%)

Total Size: 1.21 MB

Filename	Size	Change
build/annotations/index.js	3.77 kB	-5 B (0%)
build/api-fetch/index.js	3.42 kB	-28 B (0%)
build/autop/index.js	2.83 kB	-3 B (0%)
build/block-directory/index.js	8.71 kB	-10 B (0%)
build/block-editor/index.js	133 kB	-117 B (0%)
build/block-library/index.js	146 kB	-330 B (0%)
build/block-serialization-default-parser/index.js	1.87 kB	-8 B (0%)
build/block-serialization-spec-parser/index.js	3.06 kB	-41 B (1%)
build/blocks/index.js	48 kB	-164 B (0%)
build/components/index.js	171 kB	-309 B (0%)
build/compose/index.js	9.87 kB	+62 B (0%)
build/core-data/index.js	12.5 kB	-34 B (0%)
build/data/index.js	8.77 kB	-27 B (0%)
build/date/index.js	31.8 kB	-13 B (0%)
build/dom/index.js	4.45 kB	-2 B (0%)
build/edit-navigation/index.js	11.1 kB	-46 B (0%)
build/edit-post/index.js	305 kB	-98 B (0%)
build/edit-site/index.js	22.5 kB	-13 B (0%)
build/edit-widgets/index.js	26.2 kB	-121 B (0%)
build/editor/index.js	42.6 kB	-163 B (0%)
build/element/index.js	4.62 kB	-27 B (0%)
build/format-library/index.js	6.62 kB	-15 B (0%)
build/hooks/index.js	2.16 kB	-3 B (0%)
build/keycodes/index.js	1.94 kB	-1 B
build/list-reusable-blocks/index.js	3.1 kB	-6 B (0%)
build/media-utils/index.js	5.32 kB	-24 B (0%)
build/notices/index.js	1.77 kB	-16 B (0%)
build/nux/index.js	3.4 kB	-19 B (0%)
build/plugins/index.js	2.56 kB	+2 B (0%)
build/redux-routine/index.js	2.84 kB	-9 B (0%)
build/reusable-blocks/index.js	3.05 kB	-2 B (0%)
build/rich-text/index.js	13.4 kB	-23 B (0%)
build/server-side-render/index.js	2.77 kB	-3 B (0%)
build/viewport/index.js	1.84 kB	-1 B

ℹ️ View Unchanged

Filename	Size	Change
build/a11y/index.js	1.14 kB	0 B
build/blob/index.js	665 B	0 B
build/block-directory/style-rtl.css	943 B	0 B
build/block-directory/style.css	942 B	0 B
build/block-editor/style-rtl.css	11.2 kB	0 B
build/block-editor/style.css	11.2 kB	0 B
build/block-library/editor-rtl.css	8.96 kB	0 B
build/block-library/editor.css	8.96 kB	0 B
build/block-library/style-rtl.css	8.05 kB	0 B
build/block-library/style.css	8.05 kB	0 B
build/block-library/theme-rtl.css	792 B	0 B
build/block-library/theme.css	793 B	0 B
build/components/style-rtl.css	15.3 kB	0 B
build/components/style.css	15.3 kB	0 B
build/data-controls/index.js	771 B	0 B
build/deprecated/index.js	769 B	0 B
build/dom-ready/index.js	571 B	0 B
build/edit-navigation/style-rtl.css	881 B	0 B
build/edit-navigation/style.css	885 B	0 B
build/edit-post/style-rtl.css	6.41 kB	0 B
build/edit-post/style.css	6.39 kB	0 B
build/edit-site/style-rtl.css	3.91 kB	0 B
build/edit-site/style.css	3.91 kB	0 B
build/edit-widgets/style-rtl.css	3.12 kB	0 B
build/edit-widgets/style.css	3.12 kB	0 B
build/editor/editor-styles-rtl.css	480 B	0 B
build/editor/editor-styles.css	482 B	0 B
build/editor/style-rtl.css	3.85 kB	0 B
build/editor/style.css	3.85 kB	0 B
build/escape-html/index.js	735 B	0 B
build/format-library/style-rtl.css	547 B	0 B
build/format-library/style.css	548 B	0 B
build/html-entities/index.js	623 B	0 B
build/i18n/index.js	3.57 kB	0 B
build/is-shallow-equal/index.js	712 B	0 B
build/keyboard-shortcuts/index.js	2.52 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/style-rtl.css	671 B	0 B
build/nux/style.css	668 B	0 B
build/primitives/index.js	1.43 kB	0 B
build/priority-queue/index.js	791 B	0 B
build/shortcode/index.js	1.69 kB	0 B
build/token-list/index.js	1.27 kB	0 B
build/url/index.js	4.06 kB	0 B
build/warning/index.js	1.14 kB	0 B
build/wordcount/index.js	1.22 kB	0 B

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