Refactor member and product scripts to use concise method definitions

- Updated all function declarations to use ES6 shorthand method syntax in member.js, member_grup.js, point_barang.js, point_skema.js, point_tipe.js, kategori.js, operator.js, produk.js, produk_grup.js, rekpos.js, satuan.js, supplier.js, and varian.js.

app/Scripts/monitor.js

@@ -56,7 +56,7 @@ var MonJS = {
     ID_CABANG: 0,
     TOTAL_SHOP: 0,
 
-    index: function(){
+    index() {
         new Request({
             url: this.PHP + '/index',
             onSuccess: (ajson) => {
@@ -70,31 +70,31 @@ var MonJS = {
         }).send();
     },
 
-    hide_pos: function(){
+    hide_pos() {
         this.ISSHOW_POS = false;
         $('#divBanner').removeClass('d-none');
         $('#divShop').addClass('d-none');
     },
 
-    show_pos: function(){
+    show_pos() {
         this.ISSHOW_POS = true;
         $('#divBanner').addClass('d-none');
         $('#divShop').removeClass('d-none');
         this.data_query('shop');
     },
 
-    hide_thank: function(){
+    hide_thank() {
         $('#divBlur').addClass('d-none');
         $('#divThank').addClass('d-none');
     },
 
-    show_thank: function(){
+    show_thank() {
         $('#divBlur').removeClass('d-none');
         $('#divThank').removeClass('d-none');
         this.data_query('thank');
     },
 
-    data_query: function(tipe){
+    data_query(tipe) {
         if (tipe == 'config'){
             $.post(this.PHP + '/config', {}, (ajson) => {
                 if (ajson.PROMO_DURASI) MonJS.DEF_PROMO_DUR = ajson.PROMO_DURASI;