There are many routes handled by TrackerManager::process function.

All these routes are of the form /plugins/tracker/<GET params>, with the GET parameters used in a big switch to dispatch the request to right controller.

We should destroy this and let our router (FastRoute, see FrontRouter.php) do the switch between controller -> it means having one exact route for each page.

However, to avoid any breaking changes, old routes should be kept with a redirection to the new one.