Accessibility: Missing alt attributes and aria labels on images and forms

[philipithomas]

Description

Several accessibility issues found:

1. Missing alt attributes on profile photo and cover image elements in app/views/pages/_form.html.erb:38-42 and app/views/pages/_design_form.html.erb
2. Missing aria-describedby linking password fields to helper text in app/views/devise/registrations/new.html.erb
3. No focus trap in modal dialogs (app/javascript/controllers/openmodal_controller.js)
4. Cover image div uses CSS background-image with no aria-label for screen readers

Severity

Low