Explicitly pull in the punycode.js userland module

Avoids DEP[0040] warnings regarding use of the deprecated node internal punycode module

Author: GCHQDeveloper581

package-lock.json

@@ -169,6 +169,7 @@
     "popper.js": "^1.16.1",
     "process": "^0.11.10",
     "protobufjs": "^7.5.5",
+    "punycode.js": "^2.3.1",
     "qr-image": "^3.2.0",
     "reflect-metadata": "^0.2.2",
     "rison": "^0.1.1",

package.json

@@ -5,7 +5,7 @@
  */
 
 import Operation from "../Operation.mjs";
-import punycode from "punycode";
+import punycode from "punycode.js";
 
 /**
  * From Punycode operation

src/core/operations/FromPunycode.mjs

@@ -5,7 +5,7 @@
  */
 
 import Operation from "../Operation.mjs";
-import punycode from "punycode";
+import punycode from "punycode.js";
 
 /**
  * To Punycode operation