fix(react): loading layout is correct with no message (#26222)

Resolves #26219

Author: bipoza

packages/react/src/hooks/useIonLoading.tsx

@@ -18,15 +18,15 @@ export function useIonLoading(): UseIonLoadingResult {
 
   const present = useCallback(
     (
-      messageOrOptions: string | (LoadingOptions & HookOverlayOptions) = '',
+      messageOrOptions: string | (LoadingOptions & HookOverlayOptions) = {},
       duration?: number,
       spinner?: SpinnerTypes
     ) => {
       if (typeof messageOrOptions === 'string') {
         return controller.present({
           message: messageOrOptions,
           duration,
-          spinner: spinner ?? 'lines',
+          spinner,
         });
       } else {
         return controller.present(messageOrOptions);