Fix Challenge 4 🦞

[kiliancm94]

Fix the Bug Submission Pull Request

What was the bug?

When adding atomic transactions the signer parameter was sent as an Account when it needs a TransactionSigner.

How did you fix the bug?

By reading the documentation I have found a method to get the Transaction Signer from the Account.
https://github.com/algorandfoundation/algokit-utils-ts/blob/main/docs/capabilities/transaction.md#signing
Therefore, I have updated the code to fix the issue.

const senderTransactionSigner = algokit.getSenderTransactionSigner(sender)

const atc = new algosdk.AtomicTransactionComposer()
atc.addTransaction({txn: ptxn1, signer: senderTransactionSigner})
atc.addTransaction({txn: ptxn2, signer: senderTransactionSigner})

Console Screenshot:

[iskysun96]

🎉 Congrats on solving the 4th Algorand Coding Challenge!

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