Prisma Migration - User Service

[rodrigotiscareno]

Notion ticket link

[Migrate-User-Service-to-Prisma](https://www.notion.so/uwblueprintexecs/Migrate-User-Service-to-Prisma-4e6f3e6025fa4a2381c01a1b7df899e0?pvs=4

Implementation description

• Migrating the user service interface and implementation to implement Prisma in place of Sequelize.

Steps to test

1. Re-create the repository starter-code-cli.
2. Ensure the user routes are functional with Postman.

What should reviewers focus on?

Checklist

• My PR name is descriptive and in imperative tense
• 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
• I have run the appropriate linter(s)
• 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