feat: Implement major features and fix theming bug

This commit introduces several new features and a critical bug fix.

- Implemented a full "Quick Pay" flow for both within and outside the bank, including IFSC validation, beneficiary verification, and a TPIN-based payment process.
- Added a date range filter to the Account Statement screen and streamlined the UI by removing the amount filters.
- Fixed a major bug that prevented dynamic theme changes from being applied. The app now correctly switches between color themes.
- Refactored and improved beneficiary management, transaction models, and the fund transfer flow to support NEFT/RTGS.

lib/features/quick_pay/screens/quick_pay_screen.dart

@@ -64,7 +64,6 @@ class _QuickPayScreen extends State<QuickPayScreen> {
           ),
           const Divider(height: 1),
           QuickPayManagementTile(
-            disable: true,
             icon: Symbols.output_circle,
             label: AppLocalizations.of(context).outsideBank,
             onTap: () {