Adding calender-day component

So let's now turn each of these days here into an actual calendar day.

So what we're going to do is we are going to come over to our code here and I actually

want to make, this is basically where we iterate through each of the days and instead of a

div, I want to have a custom component let's call it calendar-day like this.

So we'll come down here and we will, let me just check, yes register this as a component

and in fact we'll put it into its own file.