We want to integrate firebase push notifications. all code was set but it requires a js file in root of project, how can I add this ? the requirement is firebase-messaging-sw.js is required to be set in root so that it can be accesssed as follows project_url/firebase-messaging-sw.js
for example : https://1d1f7a86-ed67-…04.weweb-preview.io/firebase-messaging-sw.js
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