Refactor javascript string

[creichert]

By refactor, I mean "remove".

Options

• Compile GHCJS component to JS module which is loaded into the SSR
• Add configuration options for a path to a module which handles the reading
  • use current string as default
  • config options for path to module frontend/dist/ssr/index.js
  • config option for entrypoint "default" function require('ssr').default.renderComponent
• Use inline-js

@assertible/developers any ideas?

After this update, we can open-source this package.