Add edit history to web UI (#17390)

* Add edit history to web UI

* Change history reducer to store items per status

* Fix missing loading prop

app/models/status_edit.rb

@@ -20,4 +20,9 @@ class StatusEdit < ApplicationRecord
   default_scope { order(id: :asc) }
 
   delegate :local?, to: :status
+
+  def emojis
+    return @emojis if defined?(@emojis)
+    @emojis = CustomEmoji.from_text([spoiler_text, text].join(' '), status.account.domain)
+  end
 end