Allow to set "tray_menu_open_on_left_click" option from command line

Signed-off-by: Lukas Holecek <hluk@email.cz>

src/gui/configurationmanager.cpp

@@ -331,6 +331,7 @@ void ConfigurationManager::initOptions()
     bind<Config::save_delay_ms_on_item_moved>();
     bind<Config::save_delay_ms_on_item_edited>();
     bind<Config::save_on_app_deactivated>();
+    bind<Config::tray_menu_open_on_left_click>();
 }
 
 template <typename Config, typename Widget>