govukDateInput macro could have default `items`

The majority of the time, you want Day, Month, Year, so we could just have that as the default without the user having to specify items

[joelanman]

pseudo code:

if (params.items == undefined){
	params.items = [
		{
			name: 'day'
		},
		{
			name: 'month'
		},
		{
			name: 'year'
		}
	]
}

[NickColley]

Hey Joe,

This seems useful but without the proposal I’m not sure how we can make changes.

I’m going to close for now but feel free to re-open with your proposal in code.