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/report/stok/akhir.js

@@ -14,14 +14,14 @@ var RepoStokAkhirJS = {
     PHP: '',
     KODE: '',
 
-    index: function(){
+    index() {
         $('#butPOS').click(() => this.proses_pos());
         $('#butCetak').click(() => this.proses_print(true));
         $('#butPreview').click(() => this.proses_print());
         $('#butExcel').click(() => this.proses_dload());
     },
 
-    proses_pos: function(){
+    proses_pos() {
         var cetak = new PrinterPos(this.PHP + '/pos');
         cetak.add_param("CabID");
         cetak.add_param("SupID");
@@ -34,7 +34,7 @@ var RepoStokAkhirJS = {
         cetak.exec();
     },
 
-    proses_print: function(prt){
+    proses_print(prt) {
         var cetak = new Printer(this.PHP + '/print');
         cetak.add_param("CabID");
         cetak.add_param("SupID");
@@ -47,7 +47,7 @@ var RepoStokAkhirJS = {
         if (prt) cetak.doPrint(); else cetak.doPreview();
     },
 
-    proses_dload: function(){
+    proses_dload() {
         var dload = new Download(this.PHP + '/excel');
         dload.add_param("CabID");
         dload.add_param("SupID");
@@ -60,7 +60,7 @@ var RepoStokAkhirJS = {
         dload.download();
     },
 
-    oc_MinStok: function(){
+    oc_MinStok() {
         if ($('#Min_Stok').val()=='Y') {
             $('#Min_Qty').prop({disabled:false, readonly:false});
             FoniaJS.setFocus('#Min_Qty')