fix(repository): Move backend code into subdirectory

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

backend/src/revisions/revisions.module.ts

@@ -0,0 +1,27 @@
+/*
+ * SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+import { Module } from '@nestjs/common';
+import { ConfigModule } from '@nestjs/config';
+import { TypeOrmModule } from '@nestjs/typeorm';
+
+import { AuthorsModule } from '../authors/authors.module';
+import { LoggerModule } from '../logger/logger.module';
+import { Edit } from './edit.entity';
+import { EditService } from './edit.service';
+import { Revision } from './revision.entity';
+import { RevisionsService } from './revisions.service';
+
+@Module({
+  imports: [
+    TypeOrmModule.forFeature([Revision, Edit]),
+    LoggerModule,
+    ConfigModule,
+    AuthorsModule,
+  ],
+  providers: [RevisionsService, EditService],
+  exports: [RevisionsService, EditService],
+})
+export class RevisionsModule {}