style: 表格size=small边距6px/拖拽mask穿透导致滚动失效

src/views/configManage/configParamTreeTable/index.vue

@@ -189,7 +189,7 @@ type ListStateType = {
 
 /**单列表状态 */
 let listState: ListStateType = reactive({
-  size: 'middle',
+  size: 'small',
   columns: [
     {
       title: 'Key',
@@ -294,7 +294,7 @@ type ArrayStateType = {
 
 /**多列列表状态 */
 let arrayState: ArrayStateType = reactive({
-  size: 'middle',
+  size: 'small',
   columns: [],
   columnsDnd: [],
   columnsData: [],
@@ -524,7 +524,7 @@ type ArrayChildStateType = {
 let arrayChildState: ArrayChildStateType = reactive({
   title: '',
   loc: '',
-  size: 'middle',
+  size: 'small',
   columns: [],
   columnsDnd: [],
   columnsData: [],