Refactor printing logic across multiple scripts to use method chaining for improved readability and consistency

- Updated Printer and PrinterPos instantiation to use method chaining with addParam instead of add_param.
- Refactored print functions in various modules including opname.js, pos.js, tukar.js, ppobtx.js, prabayar.js, and multiple report scripts.
- Enhanced code clarity and maintainability by standardizing parameter addition for print jobs.

app/Scripts/report/beli/beli.js

@@ -21,13 +21,13 @@ var RepoBeliJS = {
     },
 
     proses_print(prt) {
-        var cetak = new Printer(this.PHP + '/print');
-        cetak.add_param("Tipe");
-        cetak.add_param("CabID");
-        cetak.add_param("SupID");
-        cetak.add_param("Grup_InvID");
-        cetak.add_param("Tgl_From");
-        cetak.add_param("Tgl_To");
+        let cetak = new Printer(this.PHP + '/print')
+            .addParam("Tipe")
+            .addParam("CabID")
+            .addParam("SupID")
+            .addParam("Grup_InvID")
+            .addParam("Tgl_From")
+            .addParam("Tgl_To");
         if (prt) cetak.doPrint(); else cetak.doPreview();
     },