Optimise reCaptcha for multiple reCaptcha page

public/javascripts/layout.js

@@ -21,3 +21,14 @@ dark.addEventListener("click", () => {
     else
         contact.classList.add("hide");
 });
+
+function cb(token) {
+    document.querySelectorAll("div.recaptcha.recaptcha-cb").forEach(el => {
+        el.classList.remove("recaptcha-cb");
+        let input = document.createElement("input");
+        input.setAttribute("type", "hidden");
+        input.setAttribute("name", "g-recaptcha-response");
+        input.setAttribute("value", token);
+        el.appendChild(input);
+    });
+}

views/layout.pug

@@ -91,3 +91,5 @@ html
           +submit(value=__("layout.send"))
 
     script(src="/javascripts/layout.js")
+    if !test
+      p !{captcha}

views/mixin.pug

@@ -1,16 +1,3 @@
 mixin submit(value)
     div.recaptcha.recaptcha-cb
         input(type="submit" value!=value)
-        if !test
-            p !{captcha}
-            script.
-                function cb(token) {
-                    document.querySelectorAll("div.recaptcha.recaptcha-cb").forEach(el => {
-                        el.classList.remove("recaptcha-cb");
-                        let input = document.createElement("input");
-                        input.setAttribute("type", "hidden");
-                        input.setAttribute("name", "g-recaptcha-response");
-                        input.setAttribute("value", token);
-                        el.appendChild(input);
-                    });
-                }