NgbCheckBox autocomplete attribute support

[peterblazejewicz]

The 'autocomplete' attribute applies to somehow closed list of interactive controls types derived from the specs group of types (text, urls, passwords, multilines, etc) and it is not yet there for checkbox, though there is a request to incorporate this:
whatwg/html#1894

https://github.com/ng-bootstrap/ng-bootstrap/blob/master/src/buttons/checkbox.ts#L22

@Directive({
  selector: '[ngbButton][type=checkbox]',
  host: {
    'autocomplete': 'off',
    '[checked]': 'checked',
    '[disabled]': 'disabled',
    '(change)': 'onInputChange($event)',
    '(focus)': 'focused = true',
    '(blur)': 'focused = false'
  },
  providers: [NGB_CHECKBOX_VALUE_ACCESSOR]
})

for the moment this attribute is a no-op here, offering no support and could mislead I think.

Thanks!

[maxokorokov]

Fixed by #3377

[Kissaki]

Note that just because it is not in the standard does not mean it is a no-op. Browsers are not consistently and completely following the HTML standard.

I am not using ng-bootstrap but I stumbled over this ticket through the referenced ticket after experiencing restoration/autocomplete behavior in Firefox (96) besides it not being in the HTML spec. autocomplete=off works despite not being listed.

So heads up, if this is still removed, and depending on context, this may lead to unintended behavior.