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/interfaces/download.ts

@@ -14,6 +14,8 @@ export interface Download {
   chapter_template?: string;
   subtitle_language?: string;
   subtitle_mode?: string;
+  ytdl_options_preset?: string;
+  ytdl_options_overrides?: Record<string, unknown>;
   status: string;
   msg: string;
   percent: number;