解决版本查看对话框问题

@@ -692,6 +692,7 @@ defineExpose({
           </template>
           </template>
         </div>
         </div>
       </div>
       </div>
+      <slot name="extra-content"></slot>
     </div>
     </div>
     <template #footer v-if="footer?.visible ?? true">
     <template #footer v-if="footer?.visible ?? true">
       <div class="dialog-footer" :class="{ between: footer.textBtns }">
       <div class="dialog-footer" :class="{ between: footer.textBtns }">