Clear input value on Command + Delete for NumberField/ColorField

[reidbarber]

Closes #1877

✅ Pull Request Checklist:

• Included link to corresponding React Spectrum GitHub Issue.
• Added/updated unit tests and storybook for this change (for new code or code which already has tests).
• Filled out test instructions.
• Updated documentation (if it already exists for this component).
• Looked at the Accessibility Practices for this feature - Aria Practices

📝 Test Instructions:

For components that use useFormattedTextField (i.e. NumberField and ColorField):

1. Type text into input
2. Press CMD + Delete
3. Verify input is empty and remains active

🧢 Your Project:

[adobe-bot]

Build successful! 🎉

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[LFDanLu]

Mind adding a test here as well? https://github.com/adobe/react-spectrum/blob/main/packages/@react-spectrum/numberfield/test/NumberField.test.js#L1915

[snowystinger]

Thanks for adding these to our tests! Some manual testing notes:
Tested an old build

I don't think this is working correctly in Safari? I can't see CMD + Delete doing anything.

I think it's also not intended to be able to delete partial currency symbols, see https://reactspectrum.blob.core.windows.net/reactspectrum/50233b6d2f4b110c70f7a2badd5b76e61b1d76bc/storybook/index.html?path=/story/numberfield--currency-switcher
Set the Currency Display to Code, place the cursor in between two of the currency symbol letters, press Delete, nothing happens. Press CMD + Delete, it deletes a portion of the code.

What does state.validate return? That's the check to see if we should block the event and I'm surprised it's not blocking it while your test indicates it is.
https://github.com/adobe/react-spectrum/pull/2005/files#diff-0d27e9828095cc31dbe37a372f0dfc33464dfa4c1dd426d7952a3a6e8df28e25R99

[adobe-bot]

Build successful! 🎉

• View the storybook
• View the storybook-17
• View the documentation

[adobe-bot]

Build successful! 🎉

• View the storybook
• View the storybook-17
• View the documentation

[snowystinger]

Tested across Chrome/FF/Safari, lgtm

[LFDanLu]

LGTM