* There was off rows in some cases that is not so nice

…used for that)

When a dateinput is initialized with {selectors: true, yearRange: false},
the year selector will be rendered as an input element of type number
instead of a select element, making it easier for the user to enter a date
with a year far into the past.

This reverts commit 9ffc4b6.

Not showing weeks with only off days makes the calendar height change.
Prefer showing all 6 rows and keep calendar size consistent, even
if it means sometimes we'll show a whole row of off days.

Making sure calendar doesn't get redrawn when an onchange event gets triggered on the year selector
and the calendar has already been updated by the previous oninput event