Typing narrows both groups: airports match on code or display name,
regions match on their name or on any member code — a code-only match
tags the row with the code that hit, so it doesn't look like a stray
result. Empty groups drop their headers so the divider never dangles.
The panel body moves into its own component so the query dies with the
dropdown, and focus returns to the trigger on close.
- footer read 'v0.1' forever; it's injected from package.json at build
time now
- region picker shows 'Failed to load' instead of an eternal Loading
when /iatas errors
- selecting text in a modal and releasing over the backdrop no longer
closes it (close requires the press to start on the backdrop)
- Escape in a dropdown inside the mobile filter sheet closes just the
dropdown, not the whole sheet
- Shift+Tab right after a modal opens wraps to the last control instead
of escaping the focus trap
- formatCount rolls 999,999 over to 1M instead of printing 1000k
- TABS list moved to lib/constants so AppShell only exports components