fix prefix fields with _

.editorconfig

@@ -48,18 +48,15 @@ dotnet_style_null_propagation = true:suggestion
 dotnet_style_explicit_tuple_names = true:suggestion
 
 # Prefix private members with underscore
-dotnet_naming_rule.private_members_with_underscore.symbols = private_members
-dotnet_naming_rule.private_members_with_underscore.style = underscore_prefix
+dotnet_naming_rule.private_members_with_underscore.symbols = private_fields
+dotnet_naming_rule.private_members_with_underscore.style = prefix_underscore
 dotnet_naming_rule.private_members_with_underscore.severity = suggestion
 
-dotnet_naming_symbols.private_members.applicable_kinds = field
-dotnet_naming_symbols.private_members.applicable_accessibilities = private
-dotnet_naming_symbols.private_members.required_modifiers = readonly
+dotnet_naming_symbols.private_fields.applicable_kinds = field
+dotnet_naming_symbols.private_fields.applicable_accessibilities = private
 
-dotnet_naming_style.underscore_prefix.capitalization = camel_case
-dotnet_naming_style.underscore_prefix.required_prefix = _
-dotnet_naming_style.underscore_prefix.required_suffix = 
-dotnet_naming_style.underscore_prefix.word_separator = 
+dotnet_naming_style.prefix_underscore.capitalization = camel_case
+dotnet_naming_style.prefix_underscore.required_prefix = _
 
 # Async methods should have "Async" suffix
 dotnet_naming_rule.async_methods_end_in_async.symbols = any_async_methods