fix registration email

lib/cannery/accounts.ex

@@ -4,10 +4,10 @@ defmodule Cannery.Accounts do
   """
 
   import Ecto.Query, warn: false
-  alias Cannery.Repo
+  alias Cannery.{Mailer, Repo}
   alias Cannery.Accounts.{User, UserToken}
-  alias Cannery.Mailer
   alias Ecto.{Changeset, Multi}
+  alias Oban.Job
 
   ## Database getters
 
@@ -202,8 +202,7 @@ defmodule Cannery.Accounts do
       {:ok, %{to: ..., body: ...}}
 
   """
-  @spec deliver_update_email_instructions(User.t(), String.t(), function) ::
-          {:ok, any()} | {:error, atom()}
+  @spec deliver_update_email_instructions(User.t(), String.t(), function) :: Job.t()
   def deliver_update_email_instructions(user, current_email, update_email_url_fun)
       when is_function(update_email_url_fun, 1) do
     {encoded_token, user_token} = UserToken.build_email_token(user, "change:#{current_email}")
@@ -319,8 +318,7 @@ defmodule Cannery.Accounts do
       {:error, :already_confirmed}
 
   """
-  @spec deliver_user_confirmation_instructions(User.t(), function) ::
-          {:ok, any()} | {:error, atom()}
+  @spec deliver_user_confirmation_instructions(User.t(), function) :: Job.t()
   def deliver_user_confirmation_instructions(user, confirmation_url_fun)
       when is_function(confirmation_url_fun, 1) do
     if user.confirmed_at do
@@ -367,8 +365,7 @@ defmodule Cannery.Accounts do
       {:ok, %{to: ..., body: ...}}
 
   """
-  @spec deliver_user_reset_password_instructions(User.t(), function()) ::
-          {:ok, any()} | {:error, atom()}
+  @spec deliver_user_reset_password_instructions(User.t(), function()) :: Job.t()
   def deliver_user_reset_password_instructions(user, reset_password_url_fun)
       when is_function(reset_password_url_fun, 1) do
     {encoded_token, user_token} = UserToken.build_email_token(user, "reset_password")