Fix indentation

Signed-off-by: yubiuser <ckoenig@posteo.de>

scripts/pi-hole/js/customdns.js

@@ -65,10 +65,10 @@ $(function () {
         }
       }
     ],
-  lengthMenu: [
-    [10, 25, 50, 100, -1],
-    [10, 25, 50, 100, "All"]
-  ],
+      lengthMenu: [
+        [10, 25, 50, 100, -1],
+        [10, 25, 50, 100, "All"]
+      ],
     drawCallback: function () {
       $(".deleteCustomDNS").on("click", deleteCustomDNS);
     }