refactor(core): allow more permissive event propagation on `keydown`

[SeanCassiere]

Currently, all keydown events have preventDefault and stopPropagation called on them which makes it a burden on the library to reimplement the native behaviours that are being discarded.

This PR changes the following:

• Refactor the #focusNextField method to return a boolean representing whether the method actually focused on another element.
• Refactor the #handleKeyDown method to use a more granular approach in the matching of keydown event keys to their respective internal private methods.

The PR adds the following:

• Allow the pressing of the Tab key to focus on the next field or allow native event propagation to take place if there isn't another element to focus on.
• Allow the pressing of the Enter key to focus on the next field using the same implementation of ArrowRight.

Unit tests have been added to cover both additions of the keyboard navigation events for Enter and Tab.

Fixes #22

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: 8b43c3fab9ad67abeaa5486902dc3e84a2a679d5

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

| Name | Type | | --------- | ----- | | timescape | Minor | | demo | Patch |

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[dan-lee]

Hey @SeanCassiere! Wow, these are awesome changes. Thank you for your deeper look into the code and for fixing the issue! I think this is a great change and increases accessibility! I am not the biggest fan of switch (true) statements, but it gets the job done! (patiently waiting for pattern matching...)

As for the changeset, I'd say it's a minor change that also happens to fix things :) I can take care of that

[SeanCassiere]

As for the changeset, I'd say it's a minor change that also happens to fix things :) I can take care of that

Thanks!

[dan-lee]

This has been released in https://github.com/dan-lee/timescape/releases/tag/timescape%400.5.0 🚀

Thanks for your contribution @SeanCassiere!