Add common room snippet (#916)

Author: alexeyzimarev

docs/.vuepress/config.ts

@@ -123,6 +123,9 @@ export default defineUserConfig({
         // Reo.Dev
         ['script', { src: "/js/reoDev.js"}],
 
+        // CommonRoom
+        ['script', { src: "/js/commonRoom.js"}],
+
         // CSS override to hide the modal mask and wrapper entirely
         ['style', {}, `
           .redirect-modal-mask,

docs/.vuepress/public/js/commonRoom.js

@@ -0,0 +1,18 @@
+(function () {
+    if (typeof window === 'undefined') return;
+    if (typeof window.signals !== 'undefined') return;
+    var script = document.createElement('script');
+    script.src = 'https://cdn.cr-relay.com/v1/site/da9bc552-0721-4931-aae9-9706006d2986/signals.js';
+    script.async = true;
+    window.signals = Object.assign(
+        [],
+        ['page', 'identify', 'form'].reduce(function (acc, method) {
+            acc[method] = function () {
+                signals.push([method, arguments]);
+                return signals;
+            };
+            return acc;
+        }, {})
+    );
+    document.head.appendChild(script);
+})();