ONOS-4359: continued work on theming UI
- cleaning up device table view, and device details panel.
- updated xMark glyph, added xClose glyph.

Change-Id: I1f5e4496dbfaa58315ddf0a8c2e0f6e4ff163239
(cherry picked from commit a7f62e1)
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/UiExtensionManager.java b/web/gui/src/main/java/org/onosproject/ui/impl/UiExtensionManager.java
index e10e750..293b442 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/UiExtensionManager.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/UiExtensionManager.java
@@ -138,8 +138,7 @@
                 new UiView(NETWORK, "link", "Links", "nav_links"),
                 new UiView(NETWORK, "host", "Hosts", "nav_hosts"),
                 new UiView(NETWORK, "intent", "Intents", "nav_intents"),
-                //TODO add a new type of icon for tunnel
-                new UiView(NETWORK, "tunnel", "Tunnels", "nav_links")
+                new UiView(NETWORK, "tunnel", "Tunnels", "nav_tunnels")
         );
 
         UiMessageHandlerFactory messageHandlerFactory =