Fix formatting issues with gofmt

- Removed trailing whitespace
- Fixed tab/space alignment in struct definitions
- All tests still passing

Co-authored-by: warkanum <208308+warkanum@users.noreply.github.com>

pkg/restheadspec/empty_result_test.go

@@ -14,9 +14,9 @@ func TestNormalizeResultArray_EmptyArrayWhenNoID(t *testing.T) {
 	handler := &Handler{}
 
 	tests := []struct {
-		name              string
-		input             interface{}
-		shouldBeEmptyArr  bool
+		name             string
+		input            interface{}
+		shouldBeEmptyArr bool
 	}{
 		{
 			name:             "nil should return empty array",