Fix codifica menu JSON

ems-core/src/main/java/it/integry/ems/menu/MenuStaticCreator.java

@@ -13,6 +13,8 @@ import it.integry.ems_model.utility.UtilityLocalDate;
 import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
+import java.io.OutputStreamWriter;
+import java.nio.charset.StandardCharsets;
 import java.sql.Connection;
 import java.sql.DriverManager;
 import java.util.List;
@@ -62,9 +64,10 @@ public class MenuStaticCreator {
         if (overwrite && f.exists()) f.delete();
 
         FileOutputStream outputStream = new FileOutputStream(filePath);
-        byte[] strToBytes = content.getBytes();
-        outputStream.write(strToBytes);
+        OutputStreamWriter outputStreamWriter = new OutputStreamWriter(outputStream, StandardCharsets.UTF_8);
+        outputStreamWriter.write(content);
 
+        outputStreamWriter.close();
         outputStream.close();
     }