Implement REST API endpoints for Labs

[mateokalafatovich]

Describe your changes

[ Couple of bullet points ]

• Created labs.ts in the services folder for use in API endpoint functions
• Created GET and POST functions for Labs
• Created id specific routes GET, PUT, DELETE by id for Labs
• Updated the Lab DB Schema to allow the use of functions from services/labs.ts

Issue ticket number and link

[ Insert Link & Ticket #]

Checklist before requesting a review

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• This change requires a documentation update

[arnavjk007]

Minor changes

[arnavjk007]

This is good but let's update this to return a list of labs when we pass in user id. Because what if a user is a part of multiple labs?

[arnavjk007]

Let's also have a function that returns all labs but paginated so we only fetch for example 10 labs per query until end. Also, remember to add unit testing.