Fix Checkbox border color collapse inside Table under chrome

https://gw.alipayobjects.com/zos/rmsportal/IfMpUxFpHMcPkgDFsCuH.png

components/checkbox/style/mixin.less

@@ -143,6 +143,7 @@
       &:after {
         animation-name: none;
         border-color: @input-disabled-bg;
+        border-collapse: separate;
       }
     }