Instant edits, working swipe actions and matching header buttons

Improvements

• Deleting, renaming and editing sets and cards now show up instantly, and are restored with an error message if saving fails

• Back and other header buttons are now the same size

• The onboarding back and next buttons, the image close button and the swipe action buttons are now the same size as the header buttons.

Fixes

• Swiping a set or card left now keeps its edit and delete buttons inside the box, and they respond to taps

Read more: https://go.vocabul.app/iEI1/fx83x1ii