Birthday Reminders on Google Apps Script

This is a Google Apps Script script written in TypeScript using clasp that can notify the user of upcoming birthdays. I wrote this because I look at my calendar less actively off of business days and I forget important birthdays

It relies on being run on a daily basis by Time Triggers, and it generates a gmail message to the same user warning them of birthdays today and tomorrow. I set it to run at 5 am New York time, so when I wake up I see the email.

Adding an extra day helps with those birthdays of friends in the Asia-Pacific region.