Fix auth redirect with specific base url path (#2516)

lib/livebook_web/controllers/auth_controller.ex

@@ -65,7 +65,7 @@ defmodule LivebookWeb.AuthController do
         |> delete_session(:redirect_to)
         |> redirect(to: redirect_to)
       else
-        redirect(conn, to: "/")
+        redirect(conn, to: ~p"/")
       end
     end)
     |> halt()

lib/livebook_web/live/hub/edit_live.ex

@@ -88,7 +88,7 @@ defmodule LivebookWeb.Hub.EditLive do
 
       socket
       |> put_flash(:success, "Hub deleted successfully")
-      |> push_navigate(to: "/")
+      |> push_navigate(to: ~p"/")
     end
 
     {:noreply,