Add missing case for ResizeNone

Change-Id: If7c5fb0aa7d00745da54b1184d192c8921668075
Reviewed-by: Lorn Potter <lorn.potter@gmail.com>

src/plugins/platforms/wasm/qwasmeventtranslator.cpp

@@ -1025,6 +1025,9 @@ QCursor QWasmEventTranslator::cursorForMode(QWasmWindow::ResizeMode m)
     case QWasmWindow::ResizeRight:
         return Qt::SizeHorCursor;
         break;
+    case QWasmWindow::ResizeNone:
+        return Qt::ArrowCursor;
+        break;
     }
     return Qt::ArrowCursor;
 }