code cleanup

Author: 4BooM04

ready-to-use-ui-demo/rtu_ui_components/src/main/java/io/scanbot/example/MainActivity.kt

@@ -406,7 +406,7 @@ class MainActivity : AppCompatActivity() {
                         )
                     }
                 }
-                this.useCase = MultipleScanningMode().apply {
+                this.useCase = BarcodeUseCase.multipleScanningMode().apply {
                     this.barcodeInfoMapping.barcodeItemMapper = CustomBarcodeItemMapper()
                 }