fix: Image inline rendering not work when getContainer is false (#47034)

* fix: Image 组件 preview.getContainer=false 内联渲染不生效

* refactor: Image.preview.getContainer 空值合并逻辑

---------

Co-authored-by: 莫青 <zhengyudong.zyd@alibaba-inc.com>

components/image/__tests__/index.test.tsx

@@ -55,12 +55,19 @@ describe('Image', () => {
     const { container, baseElement } = render(
       <Image
         src={src}
-        preview={{ visible: true, transitionName: 'abc', maskTransitionName: 'def' }}
+        preview={{
+          visible: true,
+          transitionName: 'abc',
+          maskTransitionName: 'def',
+          getContainer: false,
+        }}
       />,
     );
 
     fireEvent.click(container.querySelector('.ant-image')!);
 
+    expect(container.querySelector('.ant-image-preview-root')).not.toBe(null);
+
     expect(baseElement.querySelector('.ant-image-preview')).toHaveClass('abc');
     expect(baseElement.querySelector('.ant-image-preview-mask')).toHaveClass('def');
   });

components/image/index.tsx

@@ -49,7 +49,7 @@ const Image: CompositionImage<ImageProps> = (props) => {
     typeof preview === 'object' ? preview.zIndex : undefined,
   );
 
-  const mergedPreview = React.useMemo(() => {
+  const mergedPreview = React.useMemo<ImageProps['preview']>(() => {
     if (preview === false) {
       return preview;
     }
@@ -64,7 +64,7 @@ const Image: CompositionImage<ImageProps> = (props) => {
       ),
       icons,
       ...restPreviewProps,
-      getContainer: getContainer || getContextPopupContainer,
+      getContainer: getContainer ?? getContextPopupContainer,
       transitionName: getTransitionName(rootPrefixCls, 'zoom', _preview.transitionName),
       maskTransitionName: getTransitionName(rootPrefixCls, 'fade', _preview.maskTransitionName),
       zIndex,