* Separate out watcher and web-apps in mobymask stack
* Take L2 RPC endpoint from the env file
* Changes to run watcher and mobymask web-app separately
* Support running watcher without contract deployment and L2 txs
* Remove duplicate mobymask params env
* Add code comments
* Add instructions for running web-apps separately
* Self review fixes
* Fix timeout for mobymask-app on watcher server
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Co-authored-by: prathamesh0 <prathamesh.musale0@gmail.com>