Add share component and UID

Add a unique identifier (UID) to the game and integrate the share component at the bottom of the page. Ensure that the copy link and QR code functionalities within the share component are operational.

src/components/SubtractionGame.tsx

@@ -2,8 +2,13 @@ import React, { useState, useEffect } from 'react';
 import { Button } from '@/components/ui/button';
 import { Slider } from '@/components/ui/slider';
 import confetti from 'canvas-confetti';
+import SocialShare from '@/components/SocialShare';
 
-const SubtractionGame = () => {
+interface SubtractionGameProps {
+  showSocialShare?: boolean;
+}
+
+const SubtractionGame: React.FC<SubtractionGameProps> = ({ showSocialShare = true }) => {
   const [n, setN] = useState([10]);
   const [k, setK] = useState([3]);
   const [gameStarted, setGameStarted] = useState(false);
@@ -241,6 +246,13 @@ const SubtractionGame = () => {
             </ul>
           </div>
         </div>
+
+        {showSocialShare && (
+          <SocialShare 
+            title="The Subtraction Game - Strategic Two-Player Game"
+            description={`Master the strategy of the Subtraction Game! Play with ${n[0]} circles where you can remove up to ${k[0]} from the end. Can you force your opponent into a losing position?`}
+          />
+        )}
       </div>
     </div>
   );