Add Dai withdrawal panel to the transaction page

[LukSteib]

Goal

A user is able to withdraw DAI from VAT from within the SurplusTransaction page

Context

After the test made we know now that once the deal() method on a collactable auction is called, the obtained DAI is transferred to the user's VAT balance. From there it can be withdrawn.
Hence we want to include the WithdrawDaiPanel to the TransactionPage

Tasks

• Create WithdrawDAIPanel (for the base you might re-use the existing WithdrawCollateralPanel) - see Mock below
  • adjust to DAI
  • adjust the text
• Include the existing WalletAuthorizationCheckPanel inside the withdrawal panel
• Create stories for the different possible states
  • no DAI available in VAT
  • DAI available but authorization not given
  • DAI available and auth given
  • missing wallet
  • Loading
  • expert mode

Assets

WithdrawDAIPanel including the WalletAuthorizationCheckPanel