Add raw post content in "flagged post removed by staff" PM

config/locales/server.en.yml

@@ -2405,9 +2405,13 @@ en:
       text_body_template: |
         Hello,
 
-        This is an automated message from %{site_name} to let you know that your post was removed.
+        This is an automated message from %{site_name} to let you know that [your post](%{base_url}%{url}) was removed.
 
-        <%{base_url}%{url}>
+        [details="Click to expand removed post"]
+        ```markdown
+        %{flagged_post_raw_content}
+        ```
+        [/details]
 
         %{flag_reason}
 

lib/post_destroyer.rb

@@ -232,6 +232,7 @@ class PostDestroyer
         user_id: @post.user_id,
         message_type: :flags_agreed_and_post_deleted,
         message_options: {
+          flagged_post_raw_content: @post.raw,
           url: @post.url,
           flag_reason: I18n.t(
             "flag_reasons.#{@post.active_flags.last.post_action_type.name_key}",

spec/components/post_destroyer_spec.rb

@@ -650,7 +650,12 @@ describe PostDestroyer do
       expect(second_post.bookmark_count).to eq(0)
       expect(second_post.off_topic_count).to eq(1)
 
-      expect(Jobs::SendSystemMessage.jobs.size).to eq(1)
+      jobs = Jobs::SendSystemMessage.jobs
+      expect(jobs.size).to eq(1)
+
+      Jobs::SendSystemMessage.new.execute(jobs[0]["args"][0].with_indifferent_access)
+
+      expect(Post.last.raw).to include("[details=\"Click to expand removed post\"]\n```markdown\n#{second_post.raw}\n```\n[/details]")
     end
 
     it "should not send the flags_agreed_and_post_deleted message if it was deleted by system" do