Add Playlist icon.

[jasmussen]

What?

Supports the ongoing stabilisation of the Playlist block.

How?

Uses the same basic Audio icon, but adds stripes to indicate list items.

Testing Instructions

npm run storybook:dev > icons library

Screenshots or screencast

Use of AI Tools

No.

[github-actions]

The following accounts have interacted with this PR and/or linked issues. I will continue to update these lists as activity occurs. You can also manually ask me to refresh this list by adding the props-bot label.

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Co-authored-by: jasmussen <joen@git.wordpress.org>
Co-authored-by: scruffian <scruffian@git.wordpress.org>

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[scruffian]

Looks great, thank you

[github-actions]

Flaky tests detected in 0aff1dc.
Some tests passed with failed attempts. The failures may not be related to this commit but are still reported for visibility. See the documentation for more information.

🔍 Workflow run URL: https://github.com/WordPress/gutenberg/actions/runs/29236486305
📝 Reported issues:

• [Flaky Test] Create a pattern with overrides #58009 in /test/e2e/specs/editor/various/pattern-overrides.spec.js
• [Flaky Test] should undo backtick transform with backspace #76178 in /test/e2e/specs/editor/various/rich-text.spec.js

[t-hamano]

It seems the viewbox attribute is missing 😄

[jasmussen]

Apologies, I will follow up after I merge #80094

[jasmussen]

Followup in #80180. Thanks again.