fix(repository): Move backend code into subdirectory

Signed-off-by: Tilman Vatteroth <git@tilmanvatteroth.de>

backend/src/permissions/permissions.module.ts

@@ -0,0 +1,25 @@
+/*
+ * SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+import { Module } from '@nestjs/common';
+import { TypeOrmModule } from '@nestjs/typeorm';
+
+import { GroupsModule } from '../groups/groups.module';
+import { LoggerModule } from '../logger/logger.module';
+import { Note } from '../notes/note.entity';
+import { UsersModule } from '../users/users.module';
+import { PermissionsService } from './permissions.service';
+
+@Module({
+  imports: [
+    TypeOrmModule.forFeature([Note]),
+    UsersModule,
+    GroupsModule,
+    LoggerModule,
+  ],
+  exports: [PermissionsService],
+  providers: [PermissionsService],
+})
+export class PermissionsModule {}