When an unregistered user gets sent to the editing screen, present them with a modal invitation to either log in or sign up.

Full specification

To Do

• Update designs to put account creation first
• In account creation designs, create two variations: one with the full current fields on our signup form, and one with only username, password (once), and email.
• Create a variation where the "save as IP" option is below the signup form, not adjacent to it
• Include an X to close in all versions
• Make sure the icons are filled with the same color as the input area indicator on focus
• Consider removing boxes entirely and just using separator lines between fields, like Kaity suggested

Trello card: nuz4HH5u

• column: Needs Review/QA
• labels: UI & UX Design (purple)
• Attachments
  • wikitext1-02.png
  • wikitext2-02.png
  • sign-up-and-save.png (manual cover image)
  • sign up and save-b-03.png