feat: implement search input debouncing on transfers list and fix tes…

[Unclebaffa]

📝 Comprehensive Summary of Implementation

1. List View Search Input Debouncing

• Transfers Page (Transfers.jsx):
  • Integrated useDebouncedValue hook with a 250ms threshold.
  • Bound the search input element to local state (searchInput), ensuring immediate visual feedback while typing without input lag.
  • Synced debounced search value to URL query strings (searchParams), preventing excessive re-renders and URL churn on every keystroke.
  • Preserved bi-directional synchronization with URL query parameters when clearing filters or navigating via URL.

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2. Automated Test Suite & Coverage

• New Unit Tests (useDebouncedValue.test.js):
  • Created unit test suite verifying initial value return, 250ms/300ms delayed transitions, and timer cleanup on rapid keystrokes.
• Integration Tests (transfers-filter.test.jsx):
  • Verified filtering behavior and URL query parameter sync with debounced input changes.
• Test Selector Fix (send-money-form.test.jsx):
  • Tightened form label selection query in fillValidForm using { selector: 'select' } to ensure strict target matching for currency <select> dropdowns.
• Package Script (package.json):
  • Updated test script in package.json to include test/hooks in npm test runs.

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3. Code Quality, Formatting & ESLint Config

• ESLint Configuration (eslint.config.js):
  • Added globals.node to languageOptions to properly recognize Node environment globals (process, fs, path) in test files.
  • Cleaned up unused variable warnings in wallet.js, wallet.test.js, and touch-targets.test.js.
• Verification Results:
  • ESLint (npm run lint): 0 errors, 0 warnings.
  • Prettier (npm run format:check): 100% formatted.
  • Vitest (npm test): All 141 tests across 25 test suites passed cleanly.

Closes #8