style(knowledge): 更新知识管理页面样式

- 移除 .container 类样式
- 更新知识列表项样式，使用图片替代 SVG 图标
- 为知识管理页面添加背景图片

src/assets/sass/renderUi.scss

@@ -9,3 +9,8 @@ body,
 .app-main {
   background: rgba(240, 244, 250, 1);
 }
+
+.container {
+  padding: 20px;
+  //background-image: url('../images/backimage.png');
+}

src/assets/sass/utils.scss

@@ -142,11 +142,7 @@ h3 {
   margin-bottom: 10px;
   text-align: right;
 }
-.container {
-  padding: 20px;
-  //margin: 15px;
-  //background: #fff;
-}
+
 .el-select {
   width: 100%;
 }

src/views/knowledge/index.vue

@@ -29,7 +29,8 @@
         <el-card v-for="(item, index) in datasetList" class="item datasetList" shadow="hover" :key="index" @click.native.stop="knowLedgeDetail(item)">
           <div class="dataset-header">
             <div class="folder-content">
-              <svg-icon iconClass="folder" className="folder"></svg-icon>
+              <img :src="konwledgePng_1" alt="" class="folder" />
+              <!--              <svg-icon iconClass="folder" className="folder"></svg-icon>-->
             </div>
             <div class="dataset-body" style="flex:1">
               <h4 class="dataset-title">{{ item.name }}</h4>
@@ -56,11 +57,13 @@
 <script>
 import { docManageDataset, datasetDelete } from '@/api/generatedApi/index'
 import knowledgeForm from '@/views/knowledge/detail/components/knowledgeForm.vue'
+import konwledgePng_1 from '@/assets/images/konwledge/konwledge-1.png'
 
 export default {
   name: 'index',
   data() {
     return {
+      konwledgePng_1,
       datasetList: [],
       nameLike: '',
       drawer: false,
@@ -146,6 +149,14 @@ export default {
 }
 </script>
 <style scoped lang="scss">
+#index-container {
+  background-image: url('../../assets/images/backimage.png');
+  background-size: 600px 300px;
+  background-position-x: right;
+  background-position-y: top;
+  background-repeat: no-repeat;
+}
+
 .ledge-list {
   display: flex;
   flex-wrap: wrap;