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/member/baru.js

@@ -14,17 +14,17 @@ var MemberBaruJS = {
     PHP: '',
     KODE: '',
 
-    index: function(){
+    index() {
         $('#butTambah').click(() => this.proses_add());
         $('#butSimpan').click(() => this.proses_save());
         this.data_query('view');
     },
 
-    proses_add: function(){
+    proses_add() {
         this.data_query('add');
     },
 
-    proses_save: function(){
+    proses_save() {
         new Request({
             url: this.PHP + '/proses_simpan',
             sendParam: ['MemberID','Grup_MemberID','Kode_Member','Nama_Member','Alamat_Member','Kota_Member','Telp_Member','KTP_Member','Tgl_Lahir','Tgl_Daftar'],
@@ -39,7 +39,7 @@ var MemberBaruJS = {
         }).send()        
     },
 
-    data_query: function(mode){
+    data_query(mode) {
         new Request({
             url: this.PHP + '/form_master',
             sendParam: ['mode='+mode],