[Feature Request] Add 'Download finished' sign on main screen

[Botan626]

Checklist

• [ ] This feature I'm requesting is already implemented in yt-dlp.
• [X] This feature is merely a UI/UX update.
• [ ] This feature is suitable for primary users with little knowledge about yt-dlp.
• [ ] This feature is available for most websites, not only the video platform I use.
• [ ] This feature is suitable for a large variety of videos.
• [X] This feature is not going to conflict with many of the existing options.

Is your feature request related to a problem? Please describe.

No response

Describe the solution you'd like

Please add permanent 'Download finished' sign on main screen after download is finished.

Video link

No response

Additional context

No response