Add hidden buttons to langpack.

Telegram/Resources/langs/lang.strings

@@ -19,6 +19,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_menu_set_status" = "Set Emoji Status";
 "lng_menu_change_status" = "Change Emoji Status";
 "lng_menu_my_stories" = "My Stories";
+"lng_menu_my_groups" = "My Groups";
+"lng_menu_my_channels" = "My Channels";
 
 "lng_disable_notifications_from_tray" = "Disable notifications";
 "lng_enable_notifications_from_tray" = "Enable notifications";

Telegram/SourceFiles/window/window_main_menu.cpp

@@ -218,7 +218,8 @@ not_null<Ui::SettingsButton*> AddMyChannelsBox(
 			button,
 			st::defaultPopupMenu);
 		(*menu)->addAction(
-			chats ? u"My Groups"_q : u"My Channels"_q,
+			(chats ? tr::lng_menu_my_groups : tr::lng_menu_my_channels)(
+				tr::now),
 			[=] { controller->uiShow()->showBox(Box(myChannelsBox)); },
 			nullptr);
 		(*menu)->popup(QCursor::pos());