Revert "Migration to delete questions_enabled field"

This reverts commit 3f177c94172c7b9073c30f704ec7689d2ffe3ce8.
Revert "Migration to populate QuestionLocale products"

This reverts commit 378511f23eadccf76500dab4229790d9d04c2c50.
Migration to populate QuestionLocale products
Migration to delete questions_enabled