chore: Modularized Backend Responses and Requests and Bifurcated them

Fixes #224 (closed)

Changes :
Added responses and requests in json format with the implementation of a parser that reads all of them and removed the .kt files containing json like strings. Followed the line that was mentioned in the ideas list saying: We need app to be decoupled

Screenshots for the change :
This is the current packaging scenario

All tests are still passing as well