Fix multiline names not saving properly

plugin/src/main/java/me/libraryaddict/disguise/utilities/DisguiseUtilities.java

@@ -2292,6 +2292,8 @@ public class DisguiseUtilities {
         return list.toArray(new String[0]);
     }*/
     public static String quote(String string) {
+        string = string.replace("\n", "\\n");
+
         if (!string.isEmpty() && !string.contains(" ") && !string.startsWith("\"") && !string.endsWith("\"")) {
             return string;
         }