refactor: update SDK version to 3.10.0 and clean up unused variables

fix: fix some analyze issue

packages/chicken/lib/presentation/pages/steward/root/logic.dart

@@ -225,9 +225,6 @@ class StewardRootLogic extends GetxController {
     final nestedKeyId = getNestedKey();
     GlobalKey<NavigatorState>? currentNestedKey = Get.nestedKey(nestedKeyId);
 
-    final currentRoute = currentNestedKey?.currentState;
-
-    fLog("onPopScopTaped ==> ${currentNestedKey?.currentState?.canPop()}");
     if (currentNestedKey?.currentState?.canPop() == true) {
       iLog(currentNestedKey?.currentState?.canPop());
       iLog(currentNestedKey?.currentContext);