Provide reminder to hardware wallet users to have their device ready to confirm transactions

[darkwing]

Explanation:

One of the top reasons users have problems with their hardware wallets is not having the device ready when they confirm a transaction. This PR aims to remind users they must have their hardware wallets ready before confirmation.

[github-actions]

CLA Signature Action: All authors have signed the CLA. You may need to manually re-run the blocking PR check if it doesn't pass in a few minutes.

[rachelcope]

This is using outdated styles for the notification/alert.

The new style looks like this:

This is the issue for the notification/alert system styles. We might need to discuss when the new styles will implemented or if this should just be merged first.

[rachelcope]

Question on copy... what do you mean by "Ethereum app is open"? Do you mean on the Ledger device itself?

[darkwing]

Question on copy... what do you mean by "Ethereum app is open"? Do you mean on the Ledger device itself?

Yep!

This is using outdated styles for the notification/alert.

As far as I'm aware, this is the generic notification style. @brad-decker do we have a different component I should be using?

[darkwing]

Ryan has a better version of this, closing.