修改了被申请人缴费证据优化显示

src/views/caseManagement/components/paymentdetailsDialog.vue

         <el-form-item label="缴费金额：" prop="feePayable">
           <el-input v-model="form.feePayable" :disabled="true"/>
         </el-form-item>
-        <el-form-item label="申请人缴费凭证：" v-if="form.caseAttachList">
+        <el-form-item label="申请人缴费凭证：" v-if="form.caseAttachList&&form.caseAttachList.length>0 ">
           <div style="color: #104fad;cursor:pointer" v-for="(item, index) in form.caseAttachList" :key="index"
             @click="preview(item.annexPath)">
             {{ item.annexName }}
           </div>
         </el-form-item>
-        <el-form-item label="被申请人缴费凭证：" v-if="form.resCaseAttachList">
+        <el-form-item label="被申请人缴费凭证：" v-if="form.resCaseAttachList&&form.resCaseAttachList.length>0">
           <div style="color: #104fad;cursor:pointer" v-for="(item, index) in form.resCaseAttachList" :key="index"
             @click="preview(item.annexPath)">
             {{ item.annexName }}