PeopleProxy: do not filter-out Call type

Keep Call entries in PeopleProxy row filter.
This fixes the Conference entry display.

Change-Id: If2c4feb37536c37209add3e7c410cdc853f80475
Reviewed-by: Nicolas Jäger <nicolas.jager@savoirfairelinux.com>

src/recentmodel.cpp

@@ -1251,8 +1251,10 @@ PeopleProxy::filterAcceptsRow(int sourceRow, const QModelIndex & sourceParent) c
 
                 return filterFunction(cm);
             }
-            // top nodes are only of type Person or ContactMethod
             case Ring::ObjectType::Call:
+                return true;
+
+            // top nodes are only of type Person, ContactMethod or Call
             case Ring::ObjectType::Media:
             case Ring::ObjectType::Certificate:
             case Ring::ObjectType::ContactRequest: