services: link fetcher: do not fetch links for quotes

app/services/fetch_link_card_service.rb

@@ -74,7 +74,7 @@ class FetchLinkCardService < BaseService
         @status.text.scan(URL_PATTERN).map { |array| Addressable::URI.parse(array[1]).normalize }
       else
         document = Nokogiri::HTML(@status.text)
-        links    = document.css('a')
+        links    = document.css(':not(.quote-inline) > a')
 
         links.filter_map { |a| Addressable::URI.parse(a['href']) unless skip_link?(a) }.filter_map(&:normalize)
       end