[EN] Enhancement to surveys: Id + Visible without logging

Funding: Generalitat de Catalunya The ID and created_at fields will be added so that it can be exported to .csv and can be easily managed by the administrator and sorted by creation. When the ID field exists there will be no problem with duplicate records, since they will be differentiated even though the creation date is the same. Users of the platform, even if they are not logged in, will be able to see the questions in the questionnaires. These questions can not be answered, since it will not be possible to control that the same user responds more than once to the questions, thus losing the reliability and integrity of the answers.