feat: email obfuscation (#2711)

assets/js/email.js

@@ -0,0 +1,12 @@
+(function () {
+  const links = document.querySelectorAll(".email-link");
+  links.forEach((link) => {
+    const email = atob(link.getAttribute("data-email"));
+    const subject = link.getAttribute("data-subject");
+    let mailto = "mailto:" + email;
+    if (subject) {
+      mailto += "?subject=" + encodeURIComponent(subject);
+    }
+    link.href = mailto;
+  });
+})();