Re-enable dashboard refresh actions

Uncommented calls to dashBoardController.fetchDepositAccounts() and dashBoardController.fetchExchangeRates() in the refresh icon's onTap handler so tapping the refresh button now triggers reloading of deposit accounts and exchange rates, restoring the dashboard's refresh behavior.

lib/app/modules/dashboard/views/shared/home_page.dart

@@ -71,8 +71,8 @@ class MyHomePage extends StatelessWidget {
                       borderRadius: const BorderRadius.all(Radius.circular(50)),
                       splashColor: Colors.transparent,
                       onTap: () {
-                        // dashBoardController.fetchDepositAccounts();
+                        dashBoardController.fetchDepositAccounts();
-                        // dashBoardController.fetchExchangeRates();
+                        dashBoardController.fetchExchangeRates();
                       },
                       child: const Icon(
                         Icons.refresh_outlined,