Add soft delete for statuses for instant deletes through API (#11623)

* Add soft delete for statuses to allow them to appear instant

* Allow reporting soft-deleted statuses and show them in the admin UI

* Change index for getting an account's statuses

app/models/status.rb

@@ -22,15 +22,19 @@
 #  application_id         :bigint(8)
 #  in_reply_to_account_id :bigint(8)
 #  poll_id                :bigint(8)
+#  deleted_at             :datetime
 #
 
 class Status < ApplicationRecord
   before_destroy :unlink_from_conversations
 
+  include Discard::Model
   include Paginable
   include Cacheable
   include StatusThreadingConcern
 
+  self.discard_column = :deleted_at
+
   # If `override_timestamps` is set at creation time, Snowflake ID creation
   # will be based on current time instead of `created_at`
   attr_accessor :override_timestamps
@@ -72,7 +76,7 @@ class Status < ApplicationRecord
 
   accepts_nested_attributes_for :poll
 
-  default_scope { recent }
+  default_scope { recent.kept }
 
   scope :recent, -> { reorder(id: :desc) }
   scope :remote, -> { where(local: false).where.not(uri: nil) }