Redesign roadmap

[abefernan]

• Use shadcn components, react-hook-form, and zod:

  • Chain selection
  • Account view
  • Find multisig form
  • Multisig info view
  • Create multisig form
  • Create Tx form(s)
  • Transaction view

• Make all of the above friendly for desktop-sized screens

• Remove all now unneeded old layout components like <StackableContainer />

• Choose better colors for the shadcn theme using this tool: https://ui.jln.dev