Add comments to Prisma Schema and GraphQL server (#162)

* Lowercase all relations in prisma/graphql schema

* Add Comments data model and graphql schema

* Make comments availalble on the api through resolvers and guard them

* Update front graphql schema

* Fix PR

server/src/database/seeds/index.ts

@@ -2,12 +2,16 @@ import { PrismaClient } from '@prisma/client';
 import { seedCompanies } from './companies';
 import { seedWorkspaces } from './workspaces';
 import { seedPeople } from './people';
+import { seedComments } from './comments';
+import { seedUsers } from './users';
 
 const seed = async () => {
   const prisma = new PrismaClient();
   await seedWorkspaces(prisma);
+  await seedUsers(prisma);
   await seedCompanies(prisma);
   await seedPeople(prisma);
+  await seedComments(prisma);
   await prisma.$disconnect();
 };