fix(watchlist): judge generic DATA spots at digital-class grain; tidy the toolbar wrap

7.0589 falls in the band plan's generic [7.04-7.1] DATA segment — an F/H
DXpedition off the standard dials — and 'DATA' is in nobody's log, so the spot
read NEW MODE / Needed while the FT8 contact sat right there. A generic mode
cannot be matched exactly; it is now judged at digital-class grain — worked if
ANY digital mode of that call is logged on that band — against a second
class-folded slot set built beside the exact one (shared when the grouping
option already folds them). DXHunter answers this with a finer frequency table,
which fails on exactly these off-dial expeditions; the class rule cannot.

The toolbar also wraps as a whole with tighter gaps instead of dropping its
last filter chip onto a lone second line.

frontend/src/components/WatchlistTab.tsx

@@ -179,7 +179,7 @@ export function WatchlistTab({ spots, spotStatus, onSpotSelect, onSpotClick }: P
     // lines stretched across a 34-inch window are not readable, they are long.
     <div className="flex flex-col min-h-0 flex-1 gap-2 p-2 w-full max-w-4xl mx-auto">
       {/* toolbar */}
-      <div className="flex items-center gap-2 flex-wrap">
+      <div className="flex items-center gap-x-2 gap-y-1.5 flex-wrap">
         <Eye className="size-4 text-primary shrink-0" />
         <Input className="h-8 w-44 font-mono uppercase" placeholder={t('wl.addPh')} value={addCall}
           onChange={(e) => setAddCall(e.target.value)}
@@ -194,7 +194,7 @@ export function WatchlistTab({ spots, spotStatus, onSpotSelect, onSpotClick }: P
         <div className="flex-1" />
         <div className="relative">
           <Search className="size-3.5 absolute left-2 top-1/2 -translate-y-1/2 text-muted-foreground" />
-          <Input className="h-8 w-40 pl-7 text-sm" placeholder={t('wl.searchPh')} value={search}
+          <Input className="h-8 w-32 pl-7 text-sm" placeholder={t('wl.searchPh')} value={search}
             onChange={(e) => setSearch(e.target.value)} />
         </div>
         {/* families kept together, told apart — per review of the DXHunter port,