[BUG]: Unhandled Async Clipboard Promise in `TransactionCard.tsx`

[Atharva0506]

Bug Description

The handleCopyHash function in TransactionCard.tsx calls navigator.clipboard.writeText() without awaiting the returned Promise. This causes a false success toast to appear even when the clipboard write fails, and silently swallows any errors.

Expected Behavior

• toast.success("Transaction hash copied!") should only fire after a confirmed successful write.
• On failure, a toast.error(...) should be displayed.

Steps to Reproduce

1. Open a transaction in the UI
2. Click the Copy Hash button
3. Simulate a clipboard failure (e.g. revoke clipboard permission in browser settings, or serve over HTTP)
4. Observe that the success toast still appears despite the failure

Logs and Screenshots

N/A — Bug is reproducible via code inspection.

Environment Details

• OS: Windows 11
• Browser: Chrome

Impact

Low - Minor inconvenience

Code of Conduct

• I have joined the Discord server and will post updates there
• I have searched existing issues to avoid duplicates