[FEATURE] Support containerised frontend applications

[duaraghav8]

Is your feature request related to a problem you're facing?
DS currently only supports backend applications written in Nodejs.
It disregards frontend JS applications that are packaged inside Docker images.
All frontend code in the universe is written in JS/TS or dialects of JS.
Devs often use Nodejs toolchain to develop FE codebases and even nodejs modules.
Then then use something like browserify to compile those node modules into FE JS code for their FE apps.
The FE code is packed inside a docker image along with a server software like nginx.
When the final container runs, it starts the server which then serves the frontend.

Describe the solution you'd like
DS should be able to optimize frontend images too.

Scope
The Scope of this issue is yet to be determined.