FIX: Quoted images should be lightboxed (#21332)

An older change about optimising images caused the selector that adds lightboxing not to apply on quoted images. This fixes that. The selector is now not applicable as optimisation occurs in a separate place.

This change allows quoted images to be opened in a lightbox.

lib/cooked_post_processor.rb

@@ -209,7 +209,7 @@ class CookedPostProcessor
 
       return if upload.animated?
 
-      if img.ancestors(".onebox, .onebox-body, .quote").blank? && !img.classes.include?("onebox")
+      if img.ancestors(".onebox, .onebox-body").blank? && !img.classes.include?("onebox")
         add_lightbox!(img, original_width, original_height, upload, cropped: crop)
       end
 

spec/lib/cooked_post_processor_spec.rb

@@ -1012,7 +1012,7 @@ RSpec.describe CookedPostProcessor do
       end
     end
 
-    it "optimizes images in quotes" do
+    it "optimizes and wraps images in quotes with lightbox wrapper" do
       post = Fabricate(:post, raw: <<~MD)
         [quote]
         ![image|1024x768, 50%](#{large_image_upload.short_url})
@@ -1023,7 +1023,7 @@ RSpec.describe CookedPostProcessor do
       cpp.post_process
 
       doc = Nokogiri::HTML5.fragment(cpp.html)
-      expect(doc.css(".lightbox-wrapper").size).to eq(0)
+      expect(doc.css(".lightbox-wrapper").size).to eq(1)
       expect(doc.css("img").first["srcset"]).to_not eq(nil)
     end