fix(watchlist widget): one line per spot

Callsign, band, mode, badge, age in reading order, and the widget widened
to 290 px so the badge and the age never squeeze the callsign. Two lines
made the panel twice as tall for the same three facts; the entry that
matched — which only differs when it is a prefix — moved into the row's
tooltip.

frontend/src/App.tsx

@@ -7655,7 +7655,7 @@ export default function App() {
               width. The classic dial sizes itself from the inside and expects a fixed
               column; the current one asks for the width it needs. */}
           {showWatchWidget && (
-            <div className="w-[260px] shrink-0 min-h-0" style={{ order: wOrder('watchlist') }}>
+            <div className="w-[290px] shrink-0 min-h-0" style={{ order: wOrder('watchlist') }}>
               {/* Same handler as a cluster row, for the same reason as Chase
                   new: a row here IS a spot, and half the reflex — the call
                   without the frequency, or the frequency without the mode — is