fix: 限制上传图片的类型

src/views/proof/components/AddBanner.vue

@@ -5,7 +5,7 @@
       position="bottom" 
       :close-on-click-overlay="false"
       :style="{height: '100%'}">
-      <input type="file" name="img" @change="change" id="inputbanner" style="display:none;">
+      <input type="file" name="img" @change="change" id="inputbanner" style="display:none;" accept=".png,.jpg,.gif,.jpeg">
       <h5-cropper :option="option" hide-input @getFile="getFile" ref="cropper"></h5-cropper>
       <label for="inputbanner">
          <div class="add">

src/views/template/components/BaseInfo.vue

@@ -14,7 +14,7 @@
       <span>创建模板</span>
     </div>
     <van-field v-model="templateName" placeholder="填写模板名称"></van-field>
-    <input type="file" id="thumb" style="display:none" @change="handleFileChange">
+    <input type="file" id="thumb" style="display:none" @change="handleFileChange" accept=".png,.jpg,.jpeg,.gif">
     <label for="thumb" class="file-input" style="padding: 10px 15px;margin:0 17px;">
         <common-svg name="tianjia" style="margin-right:10px;"></common-svg>
         <span>{{imgUrl ? '已上传': '添加模板封面'}}</span>