fix JavaScript error

js/components/main.vue

@@ -49,7 +49,6 @@ var mainWindow = {
                 main.departments.sort()
                 main.selectDepartment = main.departments[15]
             })
-            .then(function () {
         // Collapse Navbar
         var navbarCollapse = function () {
             if ($("#mainNav").offset().top > 100) {
@@ -62,7 +61,6 @@ var mainWindow = {
         navbarCollapse();
         // Collapse the navbar when page is scrolled
         $(window).scroll(navbarCollapse);
-            })
     },
     methods: {
         'login': function () {