feat: Add "leave team" feature

[bsantosh909]

Leave Team

I have added the leave team feature that works on the following basis:

• [x] Checks if user is registered in the last 3 days (i.e. 72 hours time period)
• [x] Checks if there is at-least another 1 user in the team

[vercel[bot]]

@TheLearneer is attempting to deploy a commit to the Novu Team on Vercel.

A member of the Team first needs to authorize it.