Changes in title.html not reflecting on the development box

I cloned /jitsi/jitsi-meet, followed these steps https://jitsi.github.io/handbook/docs/dev-guide/dev-guide-web and was able to run Jitsi web on my local Mac machine using “make dev” command.

Now when I try to change title.html / interface_config.js (just changed the title/app name) and try to bring the Jitsi web, I am not seeing the changes getting reflected.

Am I missing any dev box setup to have the local changes to reflect on the https://localhost:8080? Note: I am new to Node.js / React Native.