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/delete-many-comment-thread-target.args.ts

@@ -0,0 +1,11 @@
+import { Field } from '@nestjs/graphql';
+import { ArgsType } from '@nestjs/graphql';
+import { CommentThreadTargetWhereInput } from './comment-thread-target-where.input';
+import { Type } from 'class-transformer';
+
+@ArgsType()
+export class DeleteManyCommentThreadTargetArgs {
+  @Field(() => CommentThreadTargetWhereInput, { nullable: true })
+  @Type(() => CommentThreadTargetWhereInput)
+  where?: CommentThreadTargetWhereInput;
+}