Layout blocks - Undo / Redo shortcuts

When configuring a layout block, keyboard shortcuts are available to undo / redo

AC

• ctrl + z / cmd + z => undo
• ctrl + shift + z / cmd + shift + z => redo

• A tooltip is added to the undo / redo buttons: undo [shortcut], redo [shortcut]

• Analytics event is sent when pressing undo / redo
  • Category: Described according to NXS-5742
  • Event: [Undo / Redo]
  • Label: [Action type: drag and drop, move, copy, delete, edit]
  • Value: 1
    (goal: usage stats and understand where people make mistakes to bring UX improvements)
    (value: the more we get close to 1, the more people use the keyboard for that)