Change the way menu appear in conversations list screen

lib/ui/tiles/conversation_tile.dart

@@ -1,6 +1,7 @@
 import 'package:comunic/helpers/conversations_helper.dart';
 import 'package:comunic/lists/users_list.dart';
 import 'package:comunic/models/conversation.dart';
+import 'package:comunic/ui/widgets/custom_list_tile.dart';
 import 'package:comunic/utils/date_utils.dart';
 import 'package:comunic/utils/intl_utils.dart';
 import 'package:comunic/utils/ui_utils.dart';
@@ -52,7 +53,7 @@ class ConversationTile extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return ListTile(
+    return CustomListTile(
       onTap: () => onOpen(conversation),
       // Conversation name
       title: Text(
@@ -94,9 +95,11 @@ class ConversationTile extends StatelessWidget {
         ],
       ),
 
-      // Trailing information
+      onLongPressOpenMenu: (position) {
-      trailing: PopupMenuButton<_PopupMenuChoices>(
+        showMenu<_PopupMenuChoices>(
-        itemBuilder: (b) => <PopupMenuEntry<_PopupMenuChoices>>[
+            context: context,
+            position: position,
+            items: [
               PopupMenuItem(
                 child: Text(tr("Update")),
                 value: _PopupMenuChoices.UPDATE,
@@ -105,9 +108,8 @@ class ConversationTile extends StatelessWidget {
                 child: Text(tr("Delete")),
                 value: _PopupMenuChoices.DELETE,
               )
-        ],
+            ]).then(_conversationMenuCallback);
-        onSelected: _conversationMenuCallback,
+      },
-      ),
     );
   }