Onboarding task completed

[vips11]

Notion ticket link

Ticket Name

Implementation description

• Onboarding task completed
• Added TeamMember table in the database
• Added backend APIs for adding and getting team members
• Added a page for team members

Steps to test

1. Postman
2. Frontend using docker

What should reviewers focus on?

Checklist

• [ x ] My PR name is descriptive and in imperative tense
• [ x ] My commit messages are descriptive and in imperative tense. My commits are atomic and trivial commits are squashed or fixup'd into non-trivial commits
• [ x ] I have run the appropriate linter(s)
• [ x ] I have requested a review from the PL, as well as other devs who have background knowledge on this PR or who will be building on top of this PR