Implement quote posts in Moderator UI (#35964)

app/helpers/application_helper.rb

@@ -113,6 +113,7 @@ module ApplicationHelper
   end
 
   def material_symbol(icon, attributes = {})
+    whitespace = attributes.delete(:whitespace) { true }
     safe_join(
       [
         inline_svg_tag(
@@ -121,7 +122,7 @@ module ApplicationHelper
           role: :img,
           data: attributes[:data]
         ),
-        ' ',
+        whitespace ? ' ' : '',
       ]
     )
   end

app/helpers/statuses_helper.rb

@@ -46,6 +46,14 @@ module StatusesHelper
     status.preloadable_poll.options.map { |o| "[ ] #{o}" }.join("\n")
   end
 
+  def status_classnames(status, is_quote)
+    if is_quote
+      'status--is-quote'
+    elsif status.quote.present?
+      'status--has-quote'
+    end
+  end
+
   def status_description(status)
     components = [[media_summary(status), status_text_summary(status)].compact_blank.join(' · ')]