fix: include username, is_admin in generated JWT tokens

lib/localiser/web/controllers/session_controller.ex

@@ -25,7 +25,7 @@ defmodule Localiser.Web.Controllers.SessionController do
   def create(conn, %{"username" => username, "password" => password}) do
     case Users.authenticate_user(username, password) do
       {:ok, user} ->
-        token = Token.generate(%{"sub" => user.id})
+        token = Token.generate(%{"sub" => user.id, "username" => user.username, "is_admin" => user.is_admin})
         json(conn, %{token: token, user: render_user(user)})
 
       {:error, :invalid_credentials} ->