Check error handling for emails

[SAUMILDHANKAR]

Overview

Following error gets generated while submitting contact us form on localhost as well as on codespaces, however, the confirmation email is delivered.
UnhandledPromiseRejection: This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). The promise rejected with the reason "Sending contact form email failed.".

Action Items

• Test if this happens in your local environment
• Decide if this is the expected behavior
• Fix the error if required

Resources/Instructions

• Related file: https://github.com/hackforla/food-oasis/blob/develop/server/app/services/sendgrid-service.ts