add credit text to each unsplash image

[Shelrothman]

• apply whats shown in addForm to the select elements in the editForm
• save/persist the urls and user data for each store item
  • update the db table and all cruding to it
• render them to display in editForm
  • for the previews
    • in editForm
    • in addForm
    • in storeItemView
  • for the store