style(business): 调整分隔线高度和颜色及表单标签样式

- 将分隔线高度从2px调整为4px
- 修改分隔线背景色为#e4e7ed，替换原来的#606266
- 为.el-form-item--default .el-form-item__label设置行高18px
- 为.el-form-item--label-right .el-form-item__label添加垂直居中样式

src/styles/element-ui.scss

@@ -806,3 +806,10 @@
 .el-form-item__label {
   margin-left: 12px !important;
 }
+
+.el-form-item--default .el-form-item__label {
+  line-height: 18px;
+}
+.el-form-item--label-right .el-form-item__label {
+  align-items: center;
+}

src/views/business/components/business-crud-page.vue

@@ -13859,9 +13859,9 @@ export default {
     &::before {
       flex: 1;
       order: 2;
-      height: 2px;
+      height: 4px;
       content: '';
-      background: #606266;
+      background: #e4e7ed;
     }
 
     b.end {