[Req]: JWT Debugger

### Contact Details

_No response_

### Explain the proposed feature

JSON Web Token debugger/decoder tool

### Explain the possible use cases for the feature

For debugging, validating, and testing JWTs

### Any other details you would like to provide?

At minimum this tool should:
- Read the payload data of a JWT
- Display an informative error if not given a valid JWT
- Test if the JWT has been tampered with if given the JWT secret