FEATURE: improve error message when double liking (#23698)

If a user somehow is looking at an old version of the page and attempts
to like a post they already like. Display a more reasonable error message.

Previously we would display:

> You are not permitted to view the requested resource.

New error message is:

> Oops! You already performed this action. Can you try refreshing the page?

Triggering this error condition is very tricky, you need to stop the
message bus. A possible reason for it could be bad network connectivity.

lib/post_action_creator.rb

@@ -80,17 +80,27 @@ class PostActionCreator
       @post_action_name,
       opts: {
         is_warning: @is_warning,
-        taken_actions: PostAction.counts_for([@post].compact, @created_by)[@post&.id],
+        taken_actions: taken_actions,
       },
     )
   end
 
+  def taken_actions
+    return @taken_actions if defined?(@taken_actions)
+    @taken_actions = PostAction.counts_for([@post].compact, @created_by)[@post&.id]
+  end
+
   def perform
     result = CreateResult.new
 
     if !post_can_act? || (@queue_for_review && !guardian.is_staff?)
       result.forbidden = true
-      result.add_error(I18n.t("invalid_access"))
+
+      if taken_actions&.keys&.include?(PostActionType.types[@post_action_name])
+        result.add_error(I18n.t("action_already_performed"))
+      else
+        result.add_error(I18n.t("invalid_access"))
+      end
       return result
     end