fix(ui): align mobile notification checkboxes

[BeeJoe]

Summary

• replace notification icons with selection checkboxes on mobile without shifting or overlapping text
• bottom-align checkboxes with the notification title line
• add the StartOS 0.4.0.2 release metadata and no-op version migration (not sure it's worth a version bump but followed instructions)

Testing

• npm run check:ui
• npm run build:ui
• cargo test -p start-core --features test version::
• Prettier and Rust formatting checks
• deployed to test server and verified matching startbox hash, active startd, and running system state

[MattDHill]

Thanks for tracking this down — the diagnosis and the two files were right, and the version plumbing is exactly per VERSION_BUMP.md.

I've pushed a commit that changes how the checkbox is placed. Measuring the offset against the icon it replaces, 0.75rem lands 1.7px high on notifications without a service avatar and 4px high on those with one — because 840019c also pinned .service to grid row 1, so the avatar (2rem) now sets the title row's height. There's no single constant that's correct for both, and a constant here is what broke in the first place.

So the checkbox is now projected into .title ahead of the icon. On mobile it's an in-flow flex item and .title's existing align-items: center places it — the same rule that places the icon — and the two swap via display (both 1rem behind the same gap, so nothing moves). Desktop keeps absolute positioning, anchored to the row rather than the date cell. Nothing left to go stale on the next layout change.

Your version bump and changelog entry are unchanged and still describe it correctly. Note that #3617 also adds version/v0_4_0_2.rs and bumps the manifest, so whichever of these lands second will need that dropped.