Add appeals (#17364)

* Add appeals

* Add ability to reject appeals and ability to browse pending appeals in admin UI

* Add strikes to account page in settings

* Various fixes and improvements

- Add separate notification setting for appeals, separate from reports
- Fix style of links in report/strike header
- Change approving an appeal to not restore statuses (due to federation complexities)
- Change style of successfully appealed strikes on account settings page
- Change account settings page to only show unappealed or recently appealed strikes

* Change appealed_at to overruled_at

* Fix missing method error

app/controllers/auth/registrations_controller.rb

@@ -9,6 +9,7 @@ class Auth::RegistrationsController < Devise::RegistrationsController
   before_action :check_enabled_registrations, only: [:new, :create]
   before_action :configure_sign_up_params, only: [:create]
   before_action :set_sessions, only: [:edit, :update]
+  before_action :set_strikes, only: [:edit, :update]
   before_action :set_instance_presenter, only: [:new, :create, :update]
   before_action :set_body_classes, only: [:new, :create, :edit, :update]
   before_action :require_not_suspended!, only: [:update]
@@ -111,8 +112,10 @@ class Auth::RegistrationsController < Devise::RegistrationsController
   end
 
   def set_invite
-    invite = invite_code.present? ? Invite.find_by(code: invite_code) : nil
-    @invite = invite&.valid_for_use? ? invite : nil
+    @invite = begin
+      invite = Invite.find_by(code: invite_code) if invite_code.present?
+      invite if invite&.valid_for_use?
+    end
   end
 
   def determine_layout
@@ -123,6 +126,10 @@ class Auth::RegistrationsController < Devise::RegistrationsController
     @sessions = current_user.session_activations
   end
 
+  def set_strikes
+    @strikes = current_account.strikes.active.latest
+  end
+
   def require_not_suspended!
     forbidden if current_account.suspended?
   end