FilesystemBackend: Implement deleteFile and getFileURL.

We use `fs.unlink` instead of `fs.rm`, as the latter is only available in the fsPromises API since Node 14.14

Signed-off-by: David Mehren <git@herrmehren.de>

src/media/media.module.ts

@@ -1,13 +1,20 @@
 import { Module } from '@nestjs/common';
 import { TypeOrmModule } from '@nestjs/typeorm';
+import { LoggerModule } from '../logger/logger.module';
 import { NotesModule } from '../notes/notes.module';
 import { UsersModule } from '../users/users.module';
+import { FilesystemBackend } from './backends/filesystem-backend';
 import { MediaUpload } from './media-upload.entity';
 import { MediaService } from './media.service';
 
 @Module({
-  imports: [TypeOrmModule.forFeature([MediaUpload]), NotesModule, UsersModule],
-  providers: [MediaService],
+  imports: [
+    TypeOrmModule.forFeature([MediaUpload]),
+    NotesModule,
+    UsersModule,
+    LoggerModule,
+  ],
+  providers: [MediaService, FilesystemBackend],
   exports: [MediaService],
 })
 export class MediaModule {}