JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" class="form-control weekcal-x" name="start" id="start" />

JavaScript

$(".weekcal-x").datepicker({
                showWeek: false,
                firstDay: 0,
                maxDate: +7,
                minDate: 0,
                onSelect: function (dateText, inst) {
                    $(this).val($.datepicker.formatDate("dd/mm/yy", new Date(dateText)));
                    
                }
            }).datepicker('widget').addClass('ui-weekpicker');
            $('.ui-weekpicker').on('mousemove', 'tr', function () {
                $(this).find('td a').addClass('ui-state-hover');
            });
            $('.ui-weekpicker').on('mouseleave', 'tr', function () {
                $(this).find('td a').removeClass('ui-state-hover');
            });