Keyboard accessibility of details view

[robertknight]

The details view is not fully keyboard accessible at the moment.

It should be possible, with the keyboard, to:

• Browse the contents of the fields in view mode
• Invoke field actions in view mode (Copy, Reveal)
• See which action button for the current field is selected
• Switch between view and edit modes
• Select a field to edit
• Edit the contents of an existing field
• Invoke field actions in edit mode (Generate password, Delete)
• Add new sections
• Add new fields
• Remove fields
• Remove sections