Add a newsletter subscription form below locations

- One component used below Locations list and in the Pagination when all photos has been loaded
- Keep the subscribe page with the column display

src/style/layouts/_explore.scss

@@ -21,6 +21,5 @@
         position: relative;
         z-index: 3;
         margin-top: 72px;
-        margin-bottom: 72px;
     }
 }