feat: Add an SDK method for opening conversation in popout window (#4232)

app/javascript/widget/helpers/popoutHelper.js

@@ -0,0 +1,26 @@
+import { buildPopoutURL } from './urlParamsHelper';
+
+export const popoutChatWindow = (
+  origin,
+  websiteToken,
+  locale,
+  conversationCookie
+) => {
+  try {
+    const windowUrl = buildPopoutURL({
+      origin,
+      websiteToken,
+      locale,
+      conversationCookie,
+    });
+    const popoutWindow = window.open(
+      windowUrl,
+      `webwidget_session_${websiteToken}`,
+      'resizable=off,width=400,height=600'
+    );
+    popoutWindow.focus();
+  } catch (err) {
+    // eslint-disable-next-line no-console
+    console.log(err);
+  }
+};