fix(switch): selected state is updated during input event

[vdegenne]

Fixes #5486

[asyncLiz]

This is intentional, the selected attribute represents the default state of the form control, not its current active state. This matches <input type="checkbox" checked> behavior, whether the checked attribute does not change when the value changes.

#5486 should be fixed by changing the switch to update its state on 'input' instead of 'change', similar to checkbox.

[vdegenne]

@asyncLiz Sorry to tag you but I couldn't request a review you were not automatically placed in the reviewers list.

That should do it

[asyncLiz]

Looks great!