Fix keyboard focus not returning to input after clear

[Pytal]

Reproduction

1. Open the dropdown on https://vue-select.org/sandbox.html
2. Select an option
3. Tab to the clear button and hit the Enter key

Expected: Focus returns to the search input

Actual: Focus returns to body

The above reproduces when :multiple="true" and an option is deselected

Not applicable when an option is cleared with a mouse click in which case the focus stays on the search input