Behaviour when deleting Wallet which is currently in use

[myxmaster]

Describe your enhancement idea

When you delete the wallet config which you are currently connected to, you are taken back to "Wallets" screen (which is surprisingly slow) and then Zeus automatically connects to the 1st wallet in the list.

I think it should not do that but force the user to decide to which wallet Zeus should connect. So we should prevent navigating back, so user cannot go back to Settings (or balance view or whatever).
-> If user does not decide and closes the app: when it is started again, it should display "Wallets" screen (like when "Select node on startup" is enabled).