fix: focus medicine name field after add/update in consult

app/Views/billing/opd_prescription_basic.php

@@ -5187,6 +5187,12 @@
                     $('#opd_session_id').val(data.opd_session_id || sid);
                     clearMedicineForm(true);
                     loadMedicineList();
+                    // Keep typing flow fast: move cursor back to medicine field.
+                    setTimeout(function() {
+                        var $medName = $('#med_name');
+                        $medName.trigger('focus');
+                        $medName.trigger('select');
+                    }, 20);
                 }
             });
         });