When contract's view function returns AztecAddress deserialize it as such in Aztec.js

[benesjan]

Look for TODO(#3641) to find where is the issue.

E.g.: this code:

  if ((await bridge.methods.token().view()).inner !== token.address.toBigInt()) {
    throw new Error(`Bridge token is not ${token.address}`);
  }

should be:

  if (!(await bridge.methods.token().view()).eq(token.address)) {
    throw new Error(`Bridge token is not ${token.address}`);
  }