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

Conflicts:
- `app/controllers/home_controller.rb`:
  Upstream made it so `/web` is available to non-logged-in users
  and `/` redirects to `/web` instead of `/about`.
  Kept our version since glitch-soc's WebUI doesn't have what's
  needed yet and I think /about is still a much better landing
  page anyway.
- `app/models/form/admin_settings.rb`:
  Upstream added new settings, and glitch-soc had an extra setting.
  Not really a conflict.
  Added upstream's new settings.
- `app/serializers/initial_state_serializer.rb`:
  Upstream added a new `server` initial state object.
  Not really a conflict.
  Merged upstream's changes.
- `app/views/admin/settings/edit.html.haml`:
  Upstream added new settings.
  Not really a conflict.
  Merged upstream's changes.
- `app/workers/scheduler/feed_cleanup_scheduler.rb`:
  Upstream refactored that part and removed the file.
  Ported our relevant changes into `app/lib/vacuum/feeds_vacuum.rb`
- `config/settings.yml`:
  Upstream added new settings.
  Not a real conflict.
  Added upstream's new settings.

app/workers/activitypub/delivery_worker.rb

@@ -37,7 +37,7 @@ class ActivityPub::DeliveryWorker
 
   def build_request(http_client)
     Request.new(:post, @inbox_url, body: @json, http_client: http_client).tap do |request|
-      request.on_behalf_of(@source_account, :uri, sign_with: @options[:sign_with])
+      request.on_behalf_of(@source_account, sign_with: @options[:sign_with])
       request.add_headers(HEADERS)
       request.add_headers({ 'Collection-Synchronization' => synchronization_header }) if ENV['DISABLE_FOLLOWERS_SYNCHRONIZATION'] != 'true' && @options[:synchronize_followers]
     end

app/workers/activitypub/processing_worker.rb

@@ -5,11 +5,15 @@ class ActivityPub::ProcessingWorker
 
   sidekiq_options backtrace: true, retry: 8
 
-  def perform(account_id, body, delivered_to_account_id = nil)
-    account = Account.find_by(id: account_id)
-    return if account.nil?
+  def perform(actor_id, body, delivered_to_account_id = nil, actor_type = 'Account')
+    case actor_type
+    when 'Account'
+      actor = Account.find_by(id: actor_id)
+    end
 
-    ActivityPub::ProcessCollectionService.new.call(body, account, override_timestamps: true, delivered_to_account_id: delivered_to_account_id, delivery: true)
+    return if actor.nil?
+
+    ActivityPub::ProcessCollectionService.new.call(body, actor, override_timestamps: true, delivered_to_account_id: delivered_to_account_id, delivery: true)
   rescue ActiveRecord::RecordInvalid => e
     Rails.logger.debug "Error processing incoming ActivityPub object: #{e}"
   end