First working version with the account dialog.

src/lib/to-hex.ts

@@ -0,0 +1,17 @@
+// see https://9to5answer.com/javascript-unicode-string-to-hex
+
+export const toHex = (str: string) => {
+  let hex;
+  try {
+    hex = unescape(encodeURIComponent(str))
+      .split('')
+      .map(function (v) {
+        return v.charCodeAt(0).toString(16);
+      })
+      .join('');
+  } catch (e) {
+    hex = str;
+    console.log('invalid text input: ' + str);
+  }
+  return hex;
+};