fix(pagination.html): Limits pagination page number to integers only

fix #6596

Author: Krystian

src/features/pagination/templates/pagination.html

@@ -38,6 +38,7 @@
         ng-model="grid.options.paginationCurrentPage"
         min="1"
         max="{{ paginationApi.getTotalPages() }}"
+        step="1"
         required />
       <span
         class="ui-grid-pager-max-pages-number"