Laravel8环境下，筛选组件使用教程中的样式不适用的问题。

<!-- 筛选组件开始 -->
    <form action="{{ route('products.index') }}" class="search-form">
      <!-- row 这个修改很重要，同行两个元素 -->
      <div class="row g-2">
        <div class="col-md-9">
          <!-- row 这个修改很重要，同行两个元素 -->
          <div class="row g-2">
            <div class="col-auto"><input type="text" class="form-control form-control-sm" name="search" placeholder="搜索"></div>
            <div class="col-auto"><button class="btn btn-primary btn-sm">搜索</button></div>
          </div>
        </div>
        <div class="col-md-3">
          <select name="order" class="form-control form-control-sm float-right">
            <option value="">排序方式</option>
            <option value="price_asc">价格从低到高</option>
            <option value="price_desc">价格从高到低</option>
            <option value="sold_count_desc">销量从高到低</option>
            <option value="sold_count_asc">销量从低到高</option>
            <option value="rating_desc">评价从高到低</option>
            <option value="rating_asc">评价从低到高</option>
          </select>
        </div>
      </div>
    </form>
    <!-- 筛选组件结束 -->Copy