Pinned statuses (#4675)

* Pinned statuses

* yarn manage:translations

app/models/status_pin.rb

@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+# == Schema Information
+#
+# Table name: status_pins
+#
+#  id         :integer          not null, primary key
+#  account_id :integer          not null
+#  status_id  :integer          not null
+#
+
+class StatusPin < ApplicationRecord
+  belongs_to :account, required: true
+  belongs_to :status, required: true
+
+  validates_with StatusPinValidator
+end