Add promobar for privacy policy

[kristjanjansen]

Re-use https://github.com/tripikad/trip2/blob/master/resources/views/components/PromoBar/PromoBar.vue

Add text:

Meil on uued privaatsustingimused, vaata need üle.

Bring back close button

Just decomment

Save cookie when closed

Name it, say, privacy-closed

Open questions

Add PromobBar to each page (layouts/main.blade.php) or just frontpage?