Merge branch 'main' into glitch-soc/merge-upstream

Conflicts:
- `app/lib/activitypub/activity/create.rb`:
  Upstream refactored how `Create` activities are handled and how values are
  extracted from `Create`d objects. This conflicted with how glitch-soc
  supported the `directMessage` flag to explicitly distinguish between
  limited and direct messages.
  Ported glitch-soc's changes to latest upstream changes.
- `app/services/fan_out_on_write_service.rb`:
  Upstream largely refactored that file and changed some of the logic.
  This conflicted with glitch-soc's handling of the direct timeline and
  the options to allow replies and boosts in public feeds.
  Ported those glitch-soc changes on top of latest upstream changes.
- `app/services/process_mentions_service.rb`:
  Upstream refactored to move mention-related ActivityPub deliveries to
  `ActivityPub::DeliveryWorker`, while glitch-soc contained an extra check
  to not send local-only toots to remote mentioned users.
  Took upstream's version, as the check is not needed anymore, since it is
  performed at the `ActivityPub::DeliveryWorker` call site already.
- `app/workers/feed_insert_worker.rb`:
  Upstream added support for `update` toot events, while glitch-soc had
  support for an extra timeline support, `direct`.
  Ported upstream changes and extended them to the `direct` timeline.

Additional changes:
- `app/lib/activitypub/parser/status_parser.rb`:
  Added code to handle the `directMessage` flag and take it into account
  to compute visibility.
- `app/lib/feed_manager.rb`:
  Extended upstream's support of `update` toot events to glitch-soc's
  `direct` timeline.

app/workers/feed_insert_worker.rb

@@ -3,9 +3,10 @@
 class FeedInsertWorker
   include Sidekiq::Worker
 
-  def perform(status_id, id, type = :home)
-    @type     = type.to_sym
-    @status   = Status.find(status_id)
+  def perform(status_id, id, type = :home, options = {})
+    @type      = type.to_sym
+    @status    = Status.find(status_id)
+    @options   = options.symbolize_keys
 
     case @type
     when :home
@@ -25,10 +26,12 @@ class FeedInsertWorker
   private
 
   def check_and_insert
-    return if feed_filtered?
-
-    perform_push
-    perform_notify if notify?
+    if feed_filtered?
+      perform_unpush if update?
+    else
+      perform_push
+      perform_notify if notify?
+    end
   end
 
   def feed_filtered?
@@ -51,15 +54,30 @@ class FeedInsertWorker
   def perform_push
     case @type
     when :home
-      FeedManager.instance.push_to_home(@follower, @status)
+      FeedManager.instance.push_to_home(@follower, @status, update: update?)
     when :list
-      FeedManager.instance.push_to_list(@list, @status)
+      FeedManager.instance.push_to_list(@list, @status, update: update?)
     when :direct
-      FeedManager.instance.push_to_direct(@account, @status)
+      FeedManager.instance.push_to_direct(@account, @status, update: update?)
+    end
+  end
+
+  def perform_unpush
+    case @type
+    when :home
+      FeedManager.instance.unpush_from_home(@follower, @status, update: true)
+    when :list
+      FeedManager.instance.unpush_from_list(@list, @status, update: true)
+    when :direct
+      FeedManager.instance.unpush_from_direct(@account, @status, update: true)
     end
   end
 
   def perform_notify
     NotifyService.new.call(@follower, :status, @status)
   end
+
+  def update?
+    @options[:update]
+  end
 end