Show line animation (from MaterialYou Design)

[GuiSousa135]

Checklist

• [X] I've checked that there is no other issue about this feature request.
• [X] This issue contains only one feature request.
• [X] The title of this issue accurately describes the feature request.

Feature description

When the music is playing, show an animation in the timeline of reproduction in the standard MaterialYou Design.

Why do you want this feature?

The MaterialYou standard makes the application interface more elegant and intrusive. The animation helps the user to see when the music is playing.

Additional information

[Malopieds]

It is not part of material design, but I might add it as an optional