Merge pull request #15978 from sqal/fix_pagination_border_on_hover

[Fixes #15976] Fix pagination link cut off border on hover

less/pagination.less

@@ -40,6 +40,7 @@
   > li > span {
     &:hover,
     &:focus {
+      z-index: 3;
       color: @pagination-hover-color;
       background-color: @pagination-hover-bg;
       border-color: @pagination-hover-border;