Improve enketo-express Dockerfile

[tushar5526]

Make the dockerifle a multi-stage dockerfile so that it does not install dependencies on each build if no changes are made to package.json and lock files.

https://github.com/Samagra-Development/workflow/blob/main/packages/enketo-express/Dockerfile

[abxena]

@tushar5526 I'd like to work on this, could you please assign this to me?
Thanks

[tushar5526]

Assigned it to you @Abhinav-Saxena-dev

[Coderaman-tech]

Can I also work on the issue?

[tushar5526]

Yes you can