chore: refacto NestJS in modules (#308)

* chore: wip refacto in modules

* fix: rollback port

* fix: jwt guard in wrong folder

* chore: rename folder exception-filter in filters

* fix: tests are running

* fix: excessive stack depth comparing types

* fix: auth issue

* chore: move createUser in UserService

* fix: test

* fix: guards

* fix: jwt guard don't handle falsy user

server/src/core/@generated/user/user-count.output.ts

@@ -0,0 +1,15 @@
+import { Field } from '@nestjs/graphql';
+import { ObjectType } from '@nestjs/graphql';
+import { Int } from '@nestjs/graphql';
+
+@ObjectType()
+export class UserCount {
+  @Field(() => Int, { nullable: false })
+  companies?: number;
+
+  @Field(() => Int, { nullable: false })
+  refreshTokens?: number;
+
+  @Field(() => Int, { nullable: false })
+  comments?: number;
+}