Fix: Made it so that it reads the JWT and sends the appropriate strin…

[codingwithmanny]

Context:
Following this tutorial on YouTube: https://www.youtube.com/watch?v=5lrdYBLEk60
This is a proposal for a small fix I noticed when trying to pass the token for establishing a connection.

Error:

20101 Invalid Access Token.

Reason For Error:
The reason is because it's not passing just the JWT but the full payload for the JSON string.

Ex:

"{"token\":\"ey.....\"}"

Fix Includes:
Very primitive fix for just reading the JSON data and assigning the token value to accessToken.

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[paynerc]

I would prefer that this token extraction from the JSON happens inside the TokenUtils.fetchToken() method as that method is used in all of the Quickstart projects. This would also then ensure that the returned value from TokenUtils.fetchToken() is actually that, the JWT token.