Update URL when paginating groups

app/assets/javascripts/groups/index.js

@@ -94,6 +94,11 @@ document.addEventListener('DOMContentLoaded', () => {
             this.isLoading = false;
             $.scrollTo(0);
 
+            const currentPath = gl.utils.mergeUrlParams({ page: page }, window.location.href);
+            window.history.replaceState({
+              page: currentPath,
+            }, document.title, currentPath);
+
             this.updateGroups(response.json()); 
             this.updatePagination(response.headers);
           })