Change lists to be able to include accounts with pending follow requests (#19727)

db/migrate/20230330155710_add_follow_request_id_to_list_accounts.rb

@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+class AddFollowRequestIdToListAccounts < ActiveRecord::Migration[6.1]
+  disable_ddl_transaction!
+
+  def change
+    safety_assured { add_reference :list_accounts, :follow_request, foreign_key: { on_delete: :cascade }, index: false }
+    add_index :list_accounts, :follow_request_id, algorithm: :concurrently, where: 'follow_request_id IS NOT NULL'
+  end
+end