Avoid duplication of Songs when adding to playlist

[ksharizard]

Is there an existing issue for this?

• [X] I have searched the existing issues

Current Behavior

I can add the same song multiple times to the same playlist without having some way to know it was already added before. This leads to my playlist having the same songs 2-3 times.

Expected Behavior

Have a confirmation box, asking whether I want to add the song or not as the song is already present in my playlist.

Steps to reproduce

1. Open the App
2. Add a song to a playlist
3. Add the same song to the same playlist
4. The playlist will have the duplicate entry of the same song

Operating System

Android, Windows

Spotube version

3.6.0

Installation source

Website (spotube.netlify.app) or (spotube.krtirtho.dev), GitHub Releases (Binary)

Additional information

No response

Self grab

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