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

Conflicts:
- `Gemfile.lock`:
  Not a real conflict, upstream updated dependencies that were too close to
  glitch-soc-only ones in the file.
- `app/controllers/oauth/authorized_applications_controller.rb`:
  Upstream changed the logic surrounding suspended accounts.
  Minor conflict due to glitch-soc's theming system.
  Ported upstream changes.
- `app/controllers/settings/base_controller.rb`:
  Upstream refactored and changed the logic surrounding suspended accounts.
  Minor conflict due to glitch-soc's theming system.
  Ported upstream changes.
- `app/controllers/settings/sessions_controller.rb`:
  Upstream refactored and changed the logic surrounding suspended accounts.
  Minor conflict due to glitch-soc's theming system.
  Ported upstream changes.
- `app/models/user.rb`:
  Upstream refactored and changed the logic surrounding suspended accounts.
  Minor conflict due to glitch-soc not preventing moved accounts from logging
  in.
  Ported upstream changes while keeping the ability for moved accounts to log
  in.
- `app/policies/status_policy.rb`:
  Upstream refactored and changed the logic surrounding suspended accounts.
  Minor conflict due to glitch-soc's local-only toots.
  Ported upstream changes.
- `app/serializers/rest/account_serializer.rb`:
  Upstream refactored and changed the logic surrounding suspended accounts.
  Minor conflict due to glitch-soc's ability  to hide followers count.
  Ported upstream changes.
- `app/services/process_mentions_service.rb`:
  Upstream refactored and changed the logic surrounding suspended accounts.
  Minor conflict due to glitch-soc's local-only toots.
  Ported upstream changes.
- `package.json`:
  Not a real conflict, upstream updated dependencies that were too close to
  glitch-soc-only ones in the file.

app/controllers/accounts_controller.rb

@@ -7,6 +7,7 @@ class AccountsController < ApplicationController
   include AccountControllerConcern
   include SignatureAuthentication
 
+  before_action :require_signature!, if: -> { request.format == :json && authorized_fetch_mode? }
   before_action :set_cache_headers
   before_action :set_body_classes
 
@@ -49,7 +50,7 @@ class AccountsController < ApplicationController
 
       format.json do
         expires_in 3.minutes, public: !(authorized_fetch_mode? && signed_request_account.present?)
-        render_with_cache json: @account, content_type: 'application/activity+json', serializer: ActivityPub::ActorSerializer, adapter: ActivityPub::Adapter, fields: restrict_fields_to
+        render_with_cache json: @account, content_type: 'application/activity+json', serializer: ActivityPub::ActorSerializer, adapter: ActivityPub::Adapter
       end
     end
   end
@@ -154,12 +155,4 @@ class AccountsController < ApplicationController
   def params_slice(*keys)
     params.slice(*keys).permit(*keys)
   end
-
-  def restrict_fields_to
-    if signed_request_account.present? || public_fetch_mode?
-      # Return all fields
-    else
-      %i(id type preferred_username inbox public_key endpoints)
-    end
-  end
 end