Show order and admin page despite broken image

Avoiding:

    ActiveStorage::InvariableError

Affects the admin order page and the customer's order confirmation page.

app/views/spree/shared/_variant_thumbnail.html.haml

@@ -1,6 +1 @@
-- if variant.product.images.length == 0
-  = image_tag("/noimage/mini.png")
-- else
-  - # A Rails bug makes it necessary to call `main_app.url_for` here.
-  - # https://github.com/rails/rails/issues/31325
-  = image_tag(main_app.url_for(variant.product.images.first.variant(:mini)))
+= image_tag(variant.product.images.first&.url(:mini) || "/noimage/mini.png")

spec/views/spree/orders/show.html.haml_spec.rb

@@ -43,8 +43,6 @@ describe "spree/orders/show.html.haml" do
   end
 
   it "handles broken images" do
-    pending "https://github.com/openfoodfoundation/openfoodnetwork/issues/9279"
-
     image, = order.line_items.first.variant.product.images << Spree::Image.new(
       attachment: fixture_file_upload("logo.png", "image/png")
     )