feat: add per-download yt-dlp presets and overrides

Agent-Logs-Url: https://github.com/alexta69/metube/sessions/8a3119fc-63d1-4508-a196-8c50ff248812

Co-authored-by: alexta69 <7450369+alexta69@users.noreply.github.com>

ui/src/app/services/subscriptions.service.ts

@@ -94,6 +94,8 @@ export class SubscriptionsService {
         chapter_template: payload.chapterTemplate,
         subtitle_language: payload.subtitleLanguage,
         subtitle_mode: payload.subtitleMode,
+        ytdl_options_preset: payload.ytdlOptionsPreset,
+        ytdl_options_overrides: payload.ytdlOptionsOverrides,
         check_interval_minutes: payload.checkIntervalMinutes,
       })
       .pipe(catchError((err) => this.handleHTTPError(err)));