v0.18.2

[github-actions[bot]]

UI and library check fixes

New

• The library check asks before it acts, and says what it will touch

Fixed

• A port whose emulator is gone is not reported as on the wrong shelf
• Every scrolling list says it scrolls
• The game editor's tabs and its buttons read as one surface

Other

• ci: a release opens an Announcements discussion

sha256: 0878b3ccc72eec8bb82b7f3888813edc616f4ea3465eda1f8f7a54d3846a8b31

Built from 5d8f955.

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This discussion was created from the release v0.18.2.