implemented currency selection

app/src/main/assets/index.html

@@ -26,7 +26,6 @@
     </div>
 </div>
 
-<script src="your_javascript_file.js"></script>
 </body>
 
 </html>

app/src/main/assets/script.js

@@ -31,7 +31,7 @@ function updateBitcoinPrice() {
 // Function to refresh the Bitcoin price every 30 seconds
 function refreshBitcoinPrice() {
     updateBitcoinPrice(); // Call the function immediately to display the price on page load
-    setInterval(updateBitcoinPrice, 30000); // Call the function every 30 seconds (30,000 milliseconds)
+    setInterval(updateBitcoinPrice, 5000); // Call the function every 5 seconds (5,000 milliseconds)
 }
 
 // Call the function to refresh the Bitcoin price