Enhance the docker/Dockerfile

[irfanazam1]

Currently, the Dockerfile depends upon the external commands like npm install, and npm run build to be able to include the build folder in the image. Instead, it should be a multi staged Dockerfile with build and package stage. The build stage builds the code and the package stage uses the artifacts. Idea is that the Dockerfile should work on its own. This will make the build and push workflow smaller and easier to follow. Also, if someone wants to build locally from the Dockerfile, then it will work without any external dependencies.

[SaptarshiSarkar12]

@ofermend Can I work on this issue?

[ofermend]

for sure. would love to see your PR on this.

[SaptarshiSarkar12]

@ofermend Thank you 👍.