fix(repository): Move backend code into subdirectory

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

backend/src/config/mock/app.config.mock.ts

@@ -0,0 +1,28 @@
+/*
+ * SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+import { ConfigFactoryKeyHost, registerAs } from '@nestjs/config';
+import { ConfigFactory } from '@nestjs/config/dist/interfaces';
+
+import { AppConfig } from '../app.config';
+import { Loglevel } from '../loglevel.enum';
+
+export function createDefaultMockAppConfig(): AppConfig {
+  return {
+    domain: 'md.example.com',
+    rendererBaseUrl: 'md-renderer.example.com',
+    port: 3000,
+    loglevel: Loglevel.ERROR,
+    persistInterval: 10,
+  };
+}
+
+export function registerAppConfig(
+  appConfig: AppConfig,
+): ConfigFactory<AppConfig> & ConfigFactoryKeyHost<AppConfig> {
+  return registerAs('appConfig', (): AppConfig => appConfig);
+}
+
+export default registerAppConfig(createDefaultMockAppConfig());