Update index.html

index.html

@@ -41,7 +41,7 @@
       <!-- Swap Button -->
       <div class="swap-group">
         <button type="button" id="swapButton" aria-label="Swap Currencies">
-          <i class="fas fa-arrows-alt-v"></i>
+          <i class="fas fa-exchange-alt"></i>
         </button>
       </div>
 
@@ -69,7 +69,7 @@
       </div>
 
       <!-- Convert Button -->
-      <button type="submit" class="convert-button">Convert</button>
+      <button type="submit" id="convertButton">Convert</button>
     </form>
     
     <footer>