[Native WebGPU] Handle corner cases in naive kernel. (microsoft#24438)

### Description
Handle empty input cases in the native reduce kernel.



### Motivation and Context
<!-- - Why is this change required? What problem does it solve?
- If it fixes an open issue, please link to the issue here. -->

Author: satyajandhyala

onnxruntime/core/providers/webgpu/reduction/reduction_ops.cc

@@ -367,12 +367,12 @@ Status ReduceKernel<allow_multi_axes>::ComputeInternal(ComputeContext& context)
     }
   }
   TensorShape output_shape(output_shape_vector);
-  if (output_size == 0 || is_input_empty || input_tensor->Shape().NumDimensions() == 0) {
+  if (output_size == 0) {
     ORT_IGNORE_RETURN_VALUE(context.Output(0, output_shape));
     return Status::OK();
   }
 
-  bool use_naive_reduction = name_ == "ArgMin" || name_ == "ArgMax" || (reduce_size < 32 && output_size > 1024);
+  bool use_naive_reduction = name_ == "ArgMin" || name_ == "ArgMax" || (reduce_size < 32 && output_size > 1024) || is_input_empty || input_tensor->Shape().NumDimensions() == 0;
 
   if (use_naive_reduction) {
     ReduceNaiveProgram program(name_, reduce_op_type, keepdims_, noop_with_empty_axes_, input_axes, is_input_empty);