Handle the case when nonce is a base64 string for signMessage

[kujtimprenkuSQA]

Issues

Original issue:

Currently the nonce is being passed as a string of ASCII characters characters from wallet-selector in case the nonce Buffer contains any value greater than 128 it adds these symbols to the URL which results in strange behavior such as errors either like:
Array length 60 does not match schema length 32 at value.nonce

OR

Changes description

This PR adds the possibility to handle the case when the nonce is passed to the URL as a base64 string which is more URL-safe but still keeps the old functionality to avoid breaking changes for the current and older versions of the wallet-selector

Changes made to wallet-selector to fix the issue: near/wallet-selector#1067

Preview

Demo

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[edwardchew97]

Thanks for submitting the PR, appreciate the work!
Looks clean and straight forward to me. Is there any testnet app where we can test out the this update?

[kujtimprenkuSQA]

Thanks for submitting the PR, appreciate the work! Looks clean and straight forward to me. Is there any testnet app where we can test out the this update?

Hi, I just manually deployed the changes of this PR: near/wallet-selector#1067 in gh-pages: https://near.github.io/wallet-selector

The walletUrl for MNW is set to the preview URL: https://deploy-preview-194--imaginative-sunflower-a54795.netlify.app/

[edwardchew97]

Looks good, appreciate the contribution!

[kujtimprenkuSQA]

Looks good, appreciate the contribution!

@edwardchew97 thank you for merging it.

Is there any estimated time on when it can be live on mainnet and testnet?