Added GUI to intent perf app to monitor performance stats in real-time.

Fixed app ids for metrics app.

Change-Id: Icea99991ad71c80c53a832c236dcc05fefbb9b02
diff --git a/web/gui/src/main/webapp/app/onos.css b/web/gui/src/main/webapp/app/onos.css
index 530c06b..b42af35 100644
--- a/web/gui/src/main/webapp/app/onos.css
+++ b/web/gui/src/main/webapp/app/onos.css
@@ -48,6 +48,10 @@
     height: 100%;
 }
 
+#view h2 {
+    padding-left: 12px;
+}
+
 .light #view h2 {
     color: #800;
 }