refs or cleanup

Author: SimonCropp

src/.editorconfig

@@ -232,11 +232,11 @@ dotnet_style_predefined_type_for_locals_parameters_members = true:error
 dotnet_style_predefined_type_for_member_access = true:error
 
 # Suggest more modern language features when available
-dotnet_style_object_initializer = true:suggestion
-dotnet_style_collection_initializer = true:suggestion
-dotnet_style_coalesce_expression = false:suggestion
-dotnet_style_null_propagation = true:suggestion
-dotnet_style_explicit_tuple_names = true:suggestion
+dotnet_style_object_initializer = true:error
+dotnet_style_collection_initializer = true:error
+dotnet_style_coalesce_expression = false:error
+dotnet_style_null_propagation = true:error
+dotnet_style_explicit_tuple_names = true:error
 
 # Prefer "var" everywhere
 csharp_style_var_for_built_in_types = true:error