When /api/client/version returns 404 (no APK in /app/client/, e.g.
v2026.05.10.0 which had a failed CI APK-attach step), the previous
shape rendered the section heading + intro paragraph with an empty
hole where the button should be. Confusing — looks like a broken
button.
Moved the section wrapper, heading, and intro paragraph INSIDE
MobileAppDownload so the whole block collapses together when info
is null. Settings page just mounts <MobileAppDownload />; nothing
visible if no APK is available.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>