style(home): drop weather-hint block; recolor trams 23 green, 27 blue, 39 red

Weather hint (оденьтесь потеплее / не забудьте зонт) was pushing the
home screen past one viewport on the tablet — removed the block and its
helper fn. New tram color palette per user preference.

components/TransportWidget.tsx

@@ -22,9 +22,9 @@ const DIRECTIONS: Direction[] = [
 ]
 
 const ROUTES: { num: string; color: string; bg: string }[] = [
-  { num: '23', color: '#60a5fa', bg: 'linear-gradient(135deg, #3b82f6, #2563eb)' },
-  { num: '27', color: '#fbbf24', bg: 'linear-gradient(135deg, #f59e0b, #d97706)' },
-  { num: '39', color: '#c084fc', bg: 'linear-gradient(135deg, #a855f7, #7c3aed)' },
+  { num: '23', color: '#34d399', bg: 'linear-gradient(135deg, #10b981, #059669)' },
+  { num: '27', color: '#60a5fa', bg: 'linear-gradient(135deg, #3b82f6, #2563eb)' },
+  { num: '39', color: '#f87171', bg: 'linear-gradient(135deg, #ef4444, #dc2626)' },
 ]
 
 function formatMinutes(m: number): string {