Backport fixes to include on WordPress 5.5 beta 4

[youknowriad]

Fixes included:

• useBlockSync: Fix race condition when onChange callback changes useBlockSync: Fix race condition when onChange callback changes #24012
• I18N: Fix missing plural forms for block related strings I18N: Fix missing plural forms for block related strings #24071
• Block Breadcrumb: Fix arrow direction in RTL Block Breadcrumb: Fix arrow direction in RTL #24074
• Fix Button block colors in the editor Fix Button block colors in the editor #24153
• Fix the gallery buttons focus style Fix the gallery buttons focus style #24157
• Fix dragging multiple blocks dowards resulted in blocks inserted in wrong position Fix dragging multiple blocks dowards resulted in blocks inserted in wrong position #24183
• Block Directory: Use local assets with automatic asset detection Block Directory: Use local assets with automatic asset detection #24117
• Fix save shortcut in code editor Fix save shortcut in code editor #24151
• Fix dropdown menu focus loss when using arrow keys with Safari and Voiceover Fix dropdown menu focus loss when using arrow keys with Safari and Voiceover #24186
• Avoid rendering the clipboard textarea inside the button Avoid rendering the clipboard textarea inside the button #24194
• Avoid focusing the block selection button on each render Avoid focusing the block selection button on each render #24195
• Update the editor landmark regions Update the editor landmark regions #24196
• Avoid focus style from being cut on the categories panel Avoid focus style from being cut on the categories panel #24197
• Popover: Fix arrow color to match content border color Popover: Fix arrow color to match content border color #24208
• Fix gradient RGBA/HSLA inputs' width Fix gradient RGBA/HSLA inputs' width #24214
• i18n: Merge similar translation strings in rss block i18n: Merge similar translation strings in rss block #24159
• Show the default style variation if none provided Show the default style variation if none provided #24217
• allow enter to insert line breaks even if template is locked fix #22550 and allow enter to insert line breaks even if template is locked #23330
• Avoid adding the CREATE suggestion in the results of contexts that don't support it Avoid adding the CREATE suggestion in the results of contexts that don't support it #24222

[github-actions]

Size Change: +686 B (0%)

Total Size: 1.14 MB

Filename	Size	Change
build/api-fetch/index.js	3.4 kB	-1 B
build/autop/index.js	2.82 kB	+1 B
build/block-directory/index.js	7.93 kB	+302 B (3%)
build/block-editor/index.js	119 kB	+6 B (0%)
build/block-editor/style-rtl.css	10.7 kB	+22 B (0%)
build/block-editor/style.css	10.7 kB	+22 B (0%)
build/block-library/editor-rtl.css	7.58 kB	+3 B (0%)
build/block-library/editor.css	7.58 kB	+4 B (0%)
build/block-library/index.js	130 kB	+100 B (0%)
build/block-serialization-default-parser/index.js	1.88 kB	+1 B
build/blocks/index.js	48.2 kB	-1 B
build/components/index.js	198 kB	+61 B (0%)
build/components/style-rtl.css	15.8 kB	+21 B (0%)
build/components/style.css	15.8 kB	+22 B (0%)
build/compose/index.js	9.68 kB	-9 B (0%)
build/core-data/index.js	11.4 kB	-1 B
build/data-controls/index.js	1.29 kB	+1 B
build/data/index.js	8.44 kB	-4 B (0%)
build/edit-navigation/index.js	9.94 kB	+13 B (0%)
build/edit-post/index.js	304 kB	+46 B (0%)
build/edit-site/index.js	16.7 kB	+9 B (0%)
build/edit-widgets/index.js	9.38 kB	-3 B (0%)
build/editor/index.js	45.1 kB	+59 B (0%)
build/editor/style-rtl.css	3.8 kB	+17 B (0%)
build/editor/style.css	3.79 kB	+16 B (0%)
build/format-library/index.js	7.72 kB	-2 B (0%)
build/keyboard-shortcuts/index.js	2.51 kB	-6 B (0%)
build/list-reusable-blocks/index.js	3.12 kB	-4 B (0%)
build/media-utils/index.js	5.32 kB	-2 B (0%)
build/notices/index.js	1.79 kB	+1 B
build/rich-text/index.js	13.9 kB	-5 B (0%)
build/server-side-render/index.js	2.71 kB	-2 B (0%)
build/token-list/index.js	1.27 kB	-1 B

ℹ️ View Unchanged

Filename	Size	Change
build/a11y/index.js	1.14 kB	0 B
build/annotations/index.js	3.67 kB	0 B
build/blob/index.js	620 B	0 B
build/block-directory/style-rtl.css	944 B	0 B
build/block-directory/style.css	945 B	0 B
build/block-library/style-rtl.css	7.78 kB	0 B
build/block-library/style.css	7.79 kB	0 B
build/block-library/theme-rtl.css	728 B	0 B
build/block-library/theme.css	729 B	0 B
build/block-serialization-spec-parser/index.js	3.1 kB	0 B
build/date/index.js	5.38 kB	0 B
build/deprecated/index.js	772 B	0 B
build/dom-ready/index.js	569 B	0 B
build/dom/index.js	3.23 kB	0 B
build/edit-navigation/style-rtl.css	1.02 kB	0 B
build/edit-navigation/style.css	1.02 kB	0 B
build/edit-post/style-rtl.css	5.59 kB	0 B
build/edit-post/style.css	5.58 kB	0 B
build/edit-site/style-rtl.css	3.03 kB	0 B
build/edit-site/style.css	3.03 kB	0 B
build/edit-widgets/style-rtl.css	2.45 kB	0 B
build/edit-widgets/style.css	2.45 kB	0 B
build/editor/editor-styles-rtl.css	537 B	0 B
build/editor/editor-styles.css	539 B	0 B
build/element/index.js	4.65 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	2.13 kB	0 B
build/html-entities/index.js	622 B	0 B
build/i18n/index.js	3.57 kB	0 B
build/is-shallow-equal/index.js	710 B	0 B
build/keycodes/index.js	1.94 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	3.4 kB	0 B
build/nux/style-rtl.css	671 B	0 B
build/nux/style.css	668 B	0 B
build/plugins/index.js	2.56 kB	0 B
build/primitives/index.js	1.4 kB	0 B
build/priority-queue/index.js	789 B	0 B
build/redux-routine/index.js	2.85 kB	0 B
build/shortcode/index.js	1.7 kB	0 B
build/url/index.js	4.06 kB	0 B
build/viewport/index.js	1.85 kB	0 B
build/warning/index.js	1.14 kB	0 B
build/wordcount/index.js	1.17 kB	0 B

_{compressed-size-action}