Added Dice Game, Fixed Mines & Balance Display on all Gambling Games

This update includes the following changes and improvements:

- ✅ **Mines Game**
  - Added safety guards to prevent the edge-case failures that happend before.
  - Replaced the mine amount selector input with `+` and `–` buttons based on the suggestion.

- 🎲 **Dice Game**
  - Integrated a new Dice game based on [this CodePen implementation](https://codepen.io/oradler/pen/zxxdqKe).
  - Included a sound effect for dice rolls to enhance user interaction. ( No Copyright Issues there )

website/src/lib/components/self/games/Coinflip.svelte

@@ -314,8 +314,20 @@
 		}
 	}
 
-	onMount(() => {
+	onMount(async () => {
 		volumeSettings.load();
+		
+		try {
+			const response = await fetch('/api/portfolio/summary');
+			if (!response.ok) {
+				throw new Error('Failed to fetch portfolio summary');
+			}
+			const data = await response.json();
+			balance = data.baseCurrencyBalance;
+			onBalanceUpdate?.(data.baseCurrencyBalance);
+		} catch (error) {
+			console.error('Failed to fetch balance:', error);
+		}
 	});
 </script>