[SPARK-4255] Fix incorrect table striping

This commit stripes table rows after hiding some rows, to
ensure that rows are correct striped to alternate white
and grey even when rows are hidden by default.

Author: Kay Ousterhout <kayousterhout@gmail.com>

Closes #3117 from kayousterhout/striping and squashes the following commits:

be6e10a [Kay Ousterhout] [SPARK-4255] Fix incorrect table striping

core/src/main/resources/org/apache/spark/ui/static/additional-metrics.js

@@ -39,6 +39,8 @@ $(function() {
         var column = "table ." + $(this).attr("name");
         $(column).hide();
     });
+    // Stripe table rows after rows have been hidden to ensure correct striping.
+    stripeTables();
 
     $("input:checkbox").click(function() {
         var column = "table ." + $(this).attr("name");

core/src/main/resources/org/apache/spark/ui/static/table.js

@@ -28,8 +28,3 @@ function stripeTables() {
         });
     });
 }
-
-/* Stripe all tables after pages finish loading. */
-$(function() {
-    stripeTables();
-});