Handle uncaught exceptions

[uday-rana]

Is your feature request related to a problem? Please describe. Multiple uncaught exceptions:

• All async function calls in src/index.js;
• Missing environment variable throws Error

Describe the solution you'd like Catch the exceptions, print them to stderr, and exit with an error code.

Describe alternatives you've considered N/A

Additional context N/A

[uday-rana]

Closed by https://github.com/uday-rana/codeshift/commit/9dd8cab7c1b6c730b569b7ab7ead1f93288cc5a1