Automatically append .vcv and .vcvm extension to patches if the saved extension does not end with the correct extension.

src/app/ModuleWidget.cpp

@@ -957,7 +957,8 @@ void ModuleWidget::saveDialog() {
 	DEFER({std::free(pathC);});
 
 	std::string path = pathC;
-	if (system::getExtension(path) == "")
+	// Automatically append .vcvm extension
+	if (system::getExtension(path) != ".vcvm")
 		path += ".vcvm";
 
 	save(path);

src/patch.cpp

@@ -148,9 +148,9 @@ void PatchManager::saveAsDialog() {
 	}
 	DEFER({std::free(pathC);});
 
-	// Append .vcv extension if no extension was given.
+	// Automatically append .vcv extension
 	std::string path = pathC;
-	if (system::getExtension(path) == "") {
+	if (system::getExtension(path) != ".vcv") {
 		path += ".vcv";
 	}