Add PlaylistScreen

[luizgrp]

WHAT

Add PlaylistScreen.

WHY

In order to provide common screens.

HOW

• Add PlaylistUiModel;
• Change DownloadPlaylistUiModel to contain a PlaylistUiModel;
• Add PlaylistScreen implementation;
• Add previews in debug folder;
• Change BrowseScreen to pass largeIcon = true to SecondaryChip;
• Change SecondaryChip param name to label in order to align with param name from material Chip;

Checklist 📋

• Add explicit visibility modifier and explicit return types for public declarations
• Run spotless check
• Run tests
• Update metalava's signature text files

[yschimke]

Shouldn't this be playlists (plural) in the code?

This also gets into naming, might be worth checking with Danny. Maybe its Collection or some other term.

[luizgrp]

Shouldn't this be playlists (plural) in the code?

asked in Figma

This also gets into naming, might be worth checking with Danny. Maybe its Collection or some other term.

this is a broader strategy to be defined for the whole lib and not just for this PR - needs to be defined and iterated over all the default texts