Add keyboard support for clearing clearable selects

[joelstein]

Can you add support for pressing the backspace/delete key to trigger clearing a clearable select?

This works as a workaround, but I think it should be built into Flux:

<flux:select
  wire:model.live="timezone"
  variant="listbox"
  clearable
  x-on:keydown.backspace="if ($event.target.value === '') $wire.set('timezone', '')"
  x-on:keydown.delete="if ($event.target.value === '') $wire.set('timezone', '')"
>
  // ...
</flux:select>

[jeffchown]

@joelstein My choice for keyboard support within a clearable input would be the Esc key when the input is focused.
I think using the backspace/delete keys could cause issues with a UX.