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/api/@generated/comment-thread-target/comment-thread-target-count-aggregate.output.ts

@@ -0,0 +1,30 @@
+import { Field } from '@nestjs/graphql';
+import { ObjectType } from '@nestjs/graphql';
+import { Int } from '@nestjs/graphql';
+
+@ObjectType()
+export class CommentThreadTargetCountAggregate {
+  @Field(() => Int, { nullable: false })
+  id!: number;
+
+  @Field(() => Int, { nullable: false })
+  createdAt!: number;
+
+  @Field(() => Int, { nullable: false })
+  updatedAt!: number;
+
+  @Field(() => Int, { nullable: false })
+  deletedAt!: number;
+
+  @Field(() => Int, { nullable: false })
+  commentThreadId!: number;
+
+  @Field(() => Int, { nullable: false })
+  commentableType!: number;
+
+  @Field(() => Int, { nullable: false })
+  commentableId!: number;
+
+  @Field(() => Int, { nullable: false })
+  _all!: number;
+}