Issue #3255044 by drumm, xjm: Increase usage graph height

usage/includes/pages.inc

@@ -602,7 +602,7 @@ function theme_project_usage_chart_by_release($variables) {
     'type' => 'sparkarea',
     'rows' => [],
     'width' => '100%',
-    'height' => 200,
+    'height' => 250,
     'axis_x_show' => TRUE,
     'axis_y_show' => TRUE,
     'insetRight' => 75,