[RNMobile] Correct ios back icon

[lukewalczak]

Fixes: wordpress-mobile/gutenberg-mobile#2528

Description

Merged PR introduced the regression in back ios icon. That PR is fixing that

How has this been tested?

1. Open mobile app
2. Add Button block
3. Open its settings
4. Go to color settings
5. Expect that back button is the same as on the screenshot presented below

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: -1.48 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	-112 B (0%)
build/block-editor/style-rtl.css	11.2 kB	-7 B (0%)
build/block-editor/style.css	11.2 kB	-7 B (0%)
build/block-library/editor-rtl.css	8.96 kB	+3 B (0%)
build/block-library/editor.css	8.96 kB	+4 B (0%)
build/block-library/index.js	146 kB	-330 B (0%)
build/block-library/style-rtl.css	8.05 kB	+22 B (0%)
build/block-library/style.css	8.05 kB	+21 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	-235 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-site/style-rtl.css	3.91 kB	+4 B (0%)
build/edit-site/style.css	3.91 kB	+4 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	-8 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-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-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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