Allow to refresh instance outbox when they accept subscription

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

lib/service/formatter/html.ex

@@ -30,11 +30,13 @@ defmodule Mobilizon.Service.Formatter.HTML do
   `<h1>test</h1>next` thing becomes `test next` instead of `testnext`
   """
   @spec strip_tags_and_insert_spaces(String.t()) :: String.t()
-  def strip_tags_and_insert_spaces(html) do
+  def strip_tags_and_insert_spaces(html) when is_binary(html) do
     html
     |> String.replace("</", " </")
     |> strip_tags()
   end
 
+  def strip_tags_and_insert_spaces(html), do: html
+
   def filter_tags_for_oembed(html), do: Sanitizer.scrub(html, OEmbed)
 end

lib/service/workers/helper.ex

@@ -37,6 +37,8 @@ defmodule Mobilizon.Service.Workers.Helper do
         queue: unquote(queue),
         max_attempts: 1
 
+      alias Oban.Job
+
       def enqueue(operation, params, worker_args \\ []) do
         params = Map.merge(%{"op" => operation}, params)
         queue_atom = String.to_existing_atom(unquote(queue))