fixed datepicker position in admin for produc edit advanced pricing

[AzizKHAN030]

Related issue(s):

• Fixes Calendar is shifted down in Admin panel scandipwa#4925

Problem:

• Date picker in for advanced pricing in admin panel was positioned incorrectly, sometimes in an unreachable place

In this PR:

• Created a script that is run in header and positions the date picker on calendar button click

[zans-laksa]

I believe there can be a better solution.
Let's have a call and find it together.

[zans-laksa]

This one could be a more universal solution. But we have to be sure that this doesn't break other date picker fields.

(($) => {
    const show = $.datepicker._showDatepicker;
    
    $.extend($.datepicker, {
        _showDatepicker: (trigger) => {
            console.log('DATEPICKER SHOW', {
                trigger,
                datepicker: $.datepicker.dpDiv
            });

            // Your awesome code here
            
            return show(trigger);
        }
    });
})(jQuery);

[AzizKHAN030]

PR can be tested on https://scandipwapmrevprtest-dev.indvp.com/

[Elena-Evsa]

Fixed on Chrome Win 10
Failed on FF Win 10:

[zans-laksa]

Please redo based on my comments to previous review.

[AzizKHAN030]

@Elena-Evsa can you please recheck the pr?