refactor: consolidate game components and add toast notifications

- Remove EndlosGame support and GameDetail141.jsx component
- Add Toast notification system with CSS styling
- Refactor GameCompletionModal with enhanced styling
- Improve GameDetail component structure and styling
- Add BaseLayout.astro for consistent page structure
- Update gameService with cleaner logic
- Enhance global styles and remove unused constants
- Streamline navigation components

src/components/screens/NewGameScreen.tsx

@@ -42,7 +42,7 @@ export default function NewGameScreen({
   const handleGameTypeNext = (type: string) => {
     onDataChange({ 
       gameType: type as any, // Type assertion for now, could be improved with proper validation
-      raceTo: type === '14/1 endlos' ? '150' : '50'
+      raceTo: '8'
     });
     onStepChange('raceTo');
   };