Fix autocomplete delete action

[JoryHogeveen]

Description

See #6878
This PR implements a minimal drag distance of 1 pixel before activating dragging. This re-enables a simple click event on the remove button.

Related GitHub issue(s)

Fixes #6878

Screenshots / screencast

Changelog text for these changes

PR checklist

• I have tested my own code to confirm it works as I intended.
• My code follows the WordPress Coding Standards.
• My code follows the WordPress Inline Documentation Standards.
• My code includes automated tests for PHP and/or JS (if applicable).

[JoryHogeveen]

@sc0ttkclark @zrothauser
I couldn't find a way preventing the dragging event through the remove button itself. (Eg. disabling dragging on hover or something)
This was the best solution I could come up with.

React Select does support it's own sortable interface btw: https://react-select.com/advanced#sortable-multiselect

[sc0ttkclark]

This fixes the issue for now and if we find a better approach then we can replace it