Config: Extend AppConfig mock

This is now more in line what you would get from the regular config code

Signed-off-by: Philip Molares <philip.molares@udo.edu>

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

@@ -5,8 +5,13 @@
  */
 
 import { registerAs } from '@nestjs/config';
+import { LogLevel } from 'ts-loader/dist/logger';
 
 export default registerAs('appConfig', () => ({
+  domain: 'md.example.com',
+  rendererOrigin: 'md-renderer.example.com',
   port: 3000,
+  loglevel: LogLevel.ERROR,
+  maxDocumentLength: 100000,
   forbiddenNoteIds: ['forbiddenNoteId'],
 }));