Before this commit, when we click on the 1st control in
an editable list (usually 'Add an item') then press ESCAPE,
the focus was not on the 1st control.
The intended behaviour is to have the focus on the 1st control,
so that we may navigate left/right between controls solely with
the keyboard.
With this commit, when a cancel keyboard navigation event is
triggered in an editable list, it auto-sets the focus on the
first control.
Co-authored-by: Alexandre Kühn <aku@odoo.com>
