fix(CreateFamily): 修复封面图上传点击区域错误

将点击上传封面图的事件从容器移动到无图片时的提示区域，避免误触

@@ -107,7 +107,7 @@
             </view>
             <!-- 封面显示区域 -->
             <view class="mb-4">
-              <view class="relative bg-gray-100 rounded-lg h-48 flex items-center justify-center" @click="chooseImage">
+              <view class="relative bg-gray-100 rounded-lg h-48 flex items-center justify-center">
                 <!-- 有图片时显示图片 -->
                 <image
                   v-if="familyAvatar"
@@ -117,7 +117,7 @@
                   @tap="previewAvatar"
                 />
                 <!-- 没有图片时显示上传提示 -->
-                <view v-else class="flex flex-col items-center justify-center text-gray-400">
+                <view v-else class="flex flex-col items-center justify-center text-gray-400" @click="chooseImage">
                   <IconFont size="48" class="mb-2" name="https://cdn.ipadbiz.cn/lls_prog/icon/%E5%88%9B%E5%BB%BA%E5%AE%B6%E5%BA%AD4.png" />
                   <text class="text-sm">点击上传封面图</text>
                 </view>