Close the mobile menu on item click + smooth scroll to ID on page - add into wp_footer hook

gistfile1.txt

<script>
jQuery( document ).ready( function( $ ) {
      $( document ).on( 'click', '.main-nav li > a:first-child', function( e ) {
		var mobile = $( '.menu-toggle' );
		if ( mobile.is( ':visible' ) ) {
			$( '.menu-toggle').closest( '.main-navigation' ).removeClass( 'toggled' );
			$( '.menu-toggle').closest( '.main-navigation' ).attr( 'aria-expanded', $( '.menu-toggle').closest( '.main-navigation' ).attr( 'aria-expanded' ) === 'true' ? 'false' : 'true' );
			$( '.menu-toggle').removeClass( 'toggled' );
			$( '.menu-toggle').children( 'i' ).addClass( 'fa-bars' ).removeClass( 'fa-close' );
			$( '.menu-toggle').attr( 'aria-expanded', $( this ).attr( 'aria-expanded' ) === 'false' ? 'true' : 'false' );
		}
                var target = $(this).prop("hash");
                if (target && typeof $( target ).offset().top != 'undefined' ) {
                    $target = $( target );
                    $height = $( '.main-navigation' ).outerHeight();
                    $('html, body').stop().animate({
                                        'scrollTop': $target.offset().top - $height * 2
                    }, 900, 'swing', function () {
                                        window.location.hash = target;
                    });
                }
    });
    $( document ).on( 'click', '.entry-content a', function( e ) {
        var target = $(this).prop("hash");
                if (target) {
                    e.preventDefault();
                    $target = $( target );
                    $height = $( '.main-navigation' ).outerHeight();
                    $('html, body').stop().animate({
                                        'scrollTop': $target.offset().top - $height * 2
                    }, 900, 'swing', function () {
                                        window.location.hash = target;
                    });
                }
    });
});
</script>