Previous commit (60331b8) added `await getQuickStations()` inside
the chrome.storage.onChanged callback, but the callback arrow
function was still synchronous. Node --check missed it (node parses
the file but doesn't fully simulate Chrome's stricter module
analysis); Chrome's parser caught it as 'Unexpected reserved word'
at the await keyword.
One-character fix: `(changes, area) =>` becomes
`async (changes, area) =>`.
Same pattern as the rest of the file (e.g. initThemeUI, the toggle
handlers) which are already async.
ranger
ada3c4e18a