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/inv/label.js

@@ -29,7 +29,7 @@ var RepoInvLabelJS = {
     },
 
     proses_print(prt) {
-        var cetak = new Printer(this.PHP + '/print');
+        let cetak = new Printer(this.PHP + '/print');
         if (prt) cetak.doPrint(); else cetak.doPreview();
     },