[react-interactions] TabFocus -> FocusManager

[trueadm]

This PR makes some key alterations to the TabFocus component and its tests. It also makes some changes to the FocusWithin event responder.

FocusManager component

• Renames TabFocus to FocusManager, as this is now a more generic focus handling component, it actually does a job of managing focus within its scope.
• Adds restoreFocus
• Adds autoFocus
• Change contain prop to containFocus so its consistent with other props
• Ensure any user focus outside of the scope correctly gets restored
• Tidied up tests a bit more

FocusWithin responder

• Adds continuePropagation to the focus event
• Adds onBlurWithin event (needed for FocusManager)

[sizebot]

Details of bundled changes.

Comparing: 8b580a8...5142e7f

react-interactions

File	Filesize Diff	Gzip Diff	Prev Size	Current Size	Prev Gzip	Current Gzip	ENV
react-interactions-events/focus.development.js	+7.5%	+8.6%	10.93 KB	11.75 KB	2.36 KB	2.56 KB	UMD_DEV
react-interactions-events/press.development.js	0.0%	-0.0%	9.02 KB	9.02 KB	2.66 KB	2.66 KB	UMD_DEV
react-interactions-events/focus.production.min.js	🔺+3.8%	🔺+3.4%	4.1 KB	4.26 KB	1.39 KB	1.44 KB	UMD_PROD
react-interactions-events/press.production.min.js	0.0%	-0.1%	2.62 KB	2.62 KB	1.09 KB	1.09 KB	UMD_PROD
react-interactions-events/tap.production.min.js	0.0%	-0.0%	6.23 KB	6.23 KB	2.35 KB	2.35 KB	UMD_PROD
react-interactions-events/context-menu.development.js	0.0%	+0.1%	2.68 KB	2.68 KB	1006 B	1007 B	UMD_DEV
react-interactions-events/scroll.production.min.js	0.0%	🔺+0.1%	2.63 KB	2.63 KB	1.15 KB	1.15 KB	UMD_PROD
react-interactions-events/input.development.js	0.0%	+0.1%	4.34 KB	4.34 KB	1.4 KB	1.4 KB	NODE_DEV
react-interactions-accessibility/focus-manager.development.js	n/a	n/a	0 B	2.75 KB	0 B	1.03 KB	NODE_DEV
react-interactions-accessibility/focus-manager.production.min.js	n/a	n/a	0 B	1.26 KB	0 B	708 B	NODE_PROD
react-interactions-events/press-legacy.production.min.js	0.0%	-0.0%	7.31 KB	7.31 KB	2.77 KB	2.77 KB	UMD_PROD
ReactFocusManager-dev.js	n/a	n/a	0 B	2.73 KB	0 B	1010 B	FB_WWW_DEV
ReactFocusManager-prod.js	n/a	n/a	0 B	2.33 KB	0 B	866 B	FB_WWW_PROD
react-interactions-accessibility/focus-table.development.js	0.0%	-0.1%	6.88 KB	6.88 KB	1.63 KB	1.63 KB	NODE_DEV
react-interactions-accessibility/focus-table.production.min.js	0.0%	-0.1%	2.31 KB	2.31 KB	1002 B	1001 B	NODE_PROD
react-interactions-events/focus.development.js	+7.6%	+8.6%	10.74 KB	11.56 KB	2.32 KB	2.51 KB	NODE_DEV
react-interactions-events/focus.production.min.js	🔺+4.0%	🔺+4.7%	3.93 KB	4.09 KB	1.32 KB	1.39 KB	NODE_PROD
react-interactions-events/keyboard.development.js	0.0%	-0.0%	5.75 KB	5.75 KB	2.14 KB	2.14 KB	UMD_DEV
react-interactions-events/swipe.development.js	0.0%	-0.1%	6 KB	6 KB	1.63 KB	1.63 KB	UMD_DEV
ReactEventsFocus-dev.js	+7.9%	+8.4%	10.68 KB	11.52 KB	2.34 KB	2.53 KB	FB_WWW_DEV
ReactEventsFocus-prod.js	🔺+5.0%	🔺+5.0%	8.04 KB	8.44 KB	1.69 KB	1.78 KB	FB_WWW_PROD
react-interactions-events/drag.development.js	0.0%	-0.0%	6.98 KB	6.98 KB	2.21 KB	2.21 KB	NODE_DEV
react-interactions-accessibility/focus-control.production.min.js	0.0%	-0.2%	1.26 KB	1.26 KB	617 B	616 B	NODE_PROD

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