Highlight active user / group in memberships panel

lib/ui/routes/main_route/main_route.dart

@@ -99,7 +99,9 @@ abstract class MainController extends State<MainRoute> {
 
   /// Open a specific group page specified by its [groupID]
   void openGroup(int groupID) => pushPage(PageInfo(
-      type: PageType.GROUP_PAGE, child: GroupPageScreen(groupID: groupID)));
+      type: PageType.GROUP_PAGE,
+      child: GroupPageScreen(groupID: groupID),
+      id: groupID));
 
   /// Display the list of friends of current user
   void openFriendsList() => pushPage(

lib/ui/routes/main_route/tablet_route.dart

@@ -66,17 +66,17 @@ class _TabletRouteState extends MainController {
               Container(height: 10),
               GlobalSearchField(),
               Container(height: 10),
-              Expanded(child: MembershipsPanel())
+              Expanded(child: MembershipsPanel(currentPage: currentPage))
             ],
           ),
         ),
       );
 
   Widget _buildRightPane() => Container(
-      key: currentPage.key,
-      width: MediaQuery.of(context).size.width - _SideBarSize,
-      child: currentPage.child,
-    );
+        key: currentPage.key,
+        width: MediaQuery.of(context).size.width - _SideBarSize,
+        child: currentPage.child,
+      );
 
   @override
   void pushPage(PageInfo page) {