fix(image-group): props definition (#6621)

* fix(image-group): props definition

* feat: add ImageGroupProps type definition

components/image/PreviewGroup.tsx

@@ -1,4 +1,5 @@
-import PreviewGroup from '../vc-image/src/PreviewGroup';
+import PreviewGroup, { imageGroupProps } from '../vc-image/src/PreviewGroup';
+import type { ExtractPropTypes } from 'vue';
 import { computed, defineComponent } from 'vue';
 import useConfigInject from '../_util/hooks/useConfigInject';
 
@@ -20,11 +21,13 @@ export const icons = {
   right: <RightOutlined />,
 };
 
+export type ImageGroupProps = Partial<ExtractPropTypes<ReturnType<typeof imageGroupProps>>>;
+
 const InternalPreviewGroup = defineComponent({
   compatConfig: { MODE: 3 },
   name: 'AImagePreviewGroup',
   inheritAttrs: false,
-  props: { previewPrefixCls: String },
+  props: imageGroupProps(),
   setup(props, { attrs, slots }) {
     const { getPrefixCls } = useConfigInject('image', props);
     const prefixCls = computed(() => getPrefixCls('image-preview', props.previewPrefixCls));

components/vc-image/src/PreviewGroup.tsx

@@ -56,21 +56,23 @@ export const context = {
   },
 };
 
+export const imageGroupProps = () => ({
+  previewPrefixCls: String,
+  preview: {
+    type: [Boolean, Object] as PropType<boolean | ImagePreviewType>,
+    default: true as boolean | ImagePreviewType,
+  },
+  icons: {
+    type: Object as PropType<PreviewProps['icons']>,
+    default: () => ({}),
+  },
+});
+
 const Group = defineComponent({
   compatConfig: { MODE: 3 },
   name: 'PreviewGroup',
   inheritAttrs: false,
-  props: {
+  props: imageGroupProps(),
-    previewPrefixCls: String,
-    preview: {
-      type: [Boolean, Object] as PropType<boolean | ImagePreviewType>,
-      default: true as boolean | ImagePreviewType,
-    },
-    icons: {
-      type: Object as PropType<PreviewProps['icons']>,
-      default: () => ({}),
-    },
-  },
   setup(props, { slots }) {
     const preview = computed<PreviewGroupPreview>(() => {
       const defaultValues = {