GUACAMOLE-823: Restructure home screen connection groups to match connections.

guacamole/src/main/webapp/app/home/templates/connectionGroup.html

@@ -1,4 +1,10 @@
-<span class="home-connection-group name">
-    <a ng-show="item.balancing" ng-href="#/client/{{ item.getClientIdentifier() }}">{{item.name}}</a>
-    <span ng-show="!item.balancing">{{item.name}}</span>
-</span>
+<a class="home-connection-group"
+   ng-href="{{ item.getClientURL() }}">
+
+    <!-- Connection group icon -->
+    <div ng-show="item.balancing" class="icon type balancer"></div>
+
+    <!-- Connection group name -->
+    <span class="name">{{item.name}}</span>
+
+</a>