fix: 目录页的图片改为非必填

vdoing/components/Catalogue.vue

@@ -1,7 +1,7 @@
 <template>
   <div class="theme-vdoing-content">
     <div class="column-wrapper">
-      <img :src="$withBase(pageData.imgUrl)" />
+      <img v-if="pageData.imgUrl" :src="$withBase(pageData.imgUrl)" />
       <dl class="column-info">
         <dt class="title">{{ pageData.title }}</dt>
         <dd class="description" v-html="pageData.description"></dd>

vdoing/index.js

@@ -283,6 +283,7 @@ function getCardImgListDOM(dataList, row, config) {
 
 // 添加base路径
 function withBase(path) {
+  if (!path) return '';
   if (base && path.charAt(0) === '/') {
     return base + path.slice(1);
   } else {