[MNY-200] SDK: Fix onSuccess callback not called when tx is sent in TransactionWidget (#8119)

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## PR-Codex overview
This PR simplifies the `handlePostBuyTransactionComplete` function in the `BridgeOrchestrator` component by removing the `quote` parameter and the associated call to `onComplete`. It streamlines the transaction completion process and adjusts the `closeModal` prop accordingly.

### Detailed summary
- Removed the `quote` parameter from the `handlePostBuyTransactionComplete` function.
- Eliminated the call to `onComplete?.(quote)` within the `handlePostBuyTransactionComplete` function.
- Updated the `closeModal` prop in the `ExecutingTxScreen` component to directly use `handlePostBuyTransactionComplete` without arguments.

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Author: MananTank

packages/thirdweb/src/react/web/ui/Bridge/BridgeOrchestrator.tsx

@@ -189,13 +189,9 @@ export function BridgeOrchestrator({
   }, [send, uiOptions.mode]);
 
   // Handle post-buy transaction completion
-  const handlePostBuyTransactionComplete = useCallback(
-    (quote: BridgePrepareResult) => {
-      onComplete?.(quote);
-      send({ type: "RESET" });
-    },
-    [onComplete, send],
-  );
+  const handlePostBuyTransactionComplete = useCallback(() => {
+    send({ type: "RESET" });
+  }, [send]);
 
   // Handle errors
   const handleError = useCallback(
@@ -416,9 +412,9 @@ export function BridgeOrchestrator({
         quote &&
         uiOptions.transaction && (
           <ExecutingTxScreen
-            closeModal={() => handlePostBuyTransactionComplete(quote)}
+            closeModal={handlePostBuyTransactionComplete}
             onTxSent={() => {
-              // Do nothing
+              onComplete?.(quote);
             }}
             tx={uiOptions.transaction}
             windowAdapter={webWindowAdapter}