create script to generate Firebase token

[RohanNankani]

Notion ticket link

Create Firebase Token Script

Implementation description

Created a script to help developers generate the Firebase token quickly instead of having to generate it from the Postman.

Steps to test

1. From the CLI, run the command: "npm run dev -- --testing" and generate the PERN stack from "rohan/token-generator-script"
2. Build the application by running the command: "docker-compose up --build -d"
3. Run the following command from root of the repo: "npx ts-node token-generator.ts generate-token [email] [password]"
4. The script should give you an "accessToken". Copy and paste that accessToken and put it under “Authorization” of type “Bearer Token”
5. Make the necessary GET, POST, and DELETE requests