Continuous flow for multisig transaction signing

[oskarleonard]

What was the problem?

This PR resolves #5340

How was it solved?

Added logic to continue multi sig flow if required accounts exists in users wallet management.

How was it tested?

Case 1 - 3 mandatory accounts in account management

1. Create a multi sig account with 3 mandatory accounts (that exists in your account management)
2. Initiate a send transaction from account 1
3. Expected: you should be able to continue the signing flow and when the last accounts signs it should be given the option to send the transaction

Case 2 - Two Mandatory 1 optional

1. Create a multi sig account with 2 mandatory and 1 optional accounts (all exists in your account management)
2. Initiate a send transaction from account 1
3. Expected: you should be able to continue the signing flow and when the last accounts signs it should be given the option to send the transaction

Case 3 - Two Mandatory (one doesnt exists in your account management)

1. Create a multi sig account with 2 mandatory accounts (One of them should not exist in your account management)
2. Initiate a send transaction from account 1
3. Expected: you should now be given the option to continue signing (since next wallet doesnt exists in your account manangement)

Case 4 - Edit a multisig account

1. Try editing a required account for a multi sig account
2. Expected: you should now be given the option to continue signing for all the accounts and in the end be presented with a send transaction which should change the multisig account.

[eniolam1000752]

Review comment

• I feel weird not having the copy button at this stage since the download button exists I think also having the copy would be nice to have

• I think in a situation where a user can switch instead of having share I think it should be switch

• Even after switching, I am still on the same account that previously has a signature collected

• This UI seems off

[ManuGowda]

[ManuGowda]

Editing HW mulitisignature account crashes