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/admin/accounts_controller.rb

@@ -28,7 +28,7 @@ module Admin
       @deletion_request        = @account.deletion_request
       @account_moderation_note = current_account.account_moderation_notes.new(target_account: @account)
       @moderation_notes        = @account.targeted_moderation_notes.latest
-      @warnings                = @account.strikes.custom.latest
+      @warnings                = @account.strikes.includes(:target_account, :account, :appeal).latest
       @domain_block            = DomainBlock.rule_for(@account.domain)
     end
 
@@ -146,7 +146,7 @@ module Admin
     end
 
     def filter_params
-      params.slice(*AccountFilter::KEYS).permit(*AccountFilter::KEYS)
+      params.slice(:page, *AccountFilter::KEYS).permit(:page, *AccountFilter::KEYS)
     end
 
     def form_account_batch_params