Use with instead of if in the card

lib/pleroma/web/mastodon_api/views/status_view.ex

@@ -186,9 +186,10 @@ def render("card.json", %{rich_media: rich_media, page_url: page_url}) do
     page_url_data = URI.parse(page_url)
 
     image_url =
-      if %URI{host: nil} = page_url_data do
+      with %URI{host: nil} <- page_url_data do
         rich_media[:image]
       else
+        _ ->
           URI.merge(page_url_data, URI.parse(rich_media[:image]))
           |> to_string
       end