Deprecate and remove legacy type features

[nickserv]

The specialChars export and {} syntax for modifier keys from the old type implementation still exist, but are no longer necessary with the new implementation. Our plan for now is to mark features as deprecated in 13.x, and remove them in 14.0.0. We also might want to consolidate the two tables in the readme.

[ph-fritsche]

keyCode is already marked as deprecated and should be removed in v14 as well.

user-event/src/keyboard/getEventProps.ts

Lines 12 to 16 in 673c225

	/** @deprecated use code instead */
	keyCode:
	keyDef.keyCode ??
	// istanbul ignore next
	(keyDef.key?.length === 1 ? keyDef.key.charCodeAt(0) : undefined),

(The implementation is also bugged - see #727 )

[github-actions]

🎉 This issue has been resolved in version 14.0.0-alpha.11 🎉

The release is available on:

• npm package (@alpha dist-tag)
• GitHub release

Your semantic-release bot 📦🚀

[github-actions]

🎉 This issue has been resolved in version 14.0.0-alpha.12 🎉

The release is available on:

• npm package (@alpha dist-tag)
• GitHub release

Your semantic-release bot 📦🚀

[ph-fritsche]

Remaining keyboardState.carryValue is internal and can be removed in a refactor once behavior plugins for time and date input are rewritten.