[ damus-io/notedeck ] chrome: fix debug mode crash on macOS
The app crashed on startup when built in debug mode (`cargo run`)
but worked fine in release mode (`cargo run --release`).
Root cause: objc2-foundation 0.2.2 (transitive dep from winit) has
incorrect type encoding for NSFastEnumeration - it expects signed
i64 ('q') but macOS returns unsigned u64 ('Q'). In debug mode,
objc2 verifies type encodings at runtime and panics on mismatch.