feat(frontend):前端调整

frontend/src/views/dataset/data/TabDataPreview.vue

 <template>
   <el-col>
     <el-row>
-      <el-col :span="4">
+      <el-col style="width: 200px;">
         <el-form ref="form" :model="form" label-width="60px" size="mini" class="row-style">
           <el-form-item :label="$t('dataset.showRow')">
             <el-input v-model="form.row">