多选框样式宽度放小

src/views/purchase/contract/config/mainList.json

@@ -23,6 +23,7 @@
   "addBtnText": "新单",
   "expand": true,
   "expandWidth": 38,
+  "selectionWidth": 40,
   "column":[
     {
       "label": "合同号",

src/views/salesManagement/salesContract/config/mainList.json

@@ -21,6 +21,7 @@
   "searchIcon": true,
   "searchIndex": 2,
   "expandWidth": 38,
+  "selectionWidth": 40,
   "addBtnText": "新单",
   "expand": true,
   "rowKey": "id",