[Backend]: Separation of Queries of existing Models

[Mayank0255]

Context

This is the first task of #2, in which the existing queries will be separated first from the models

[Bootspace]

Hey @Mayank0255 can you explain in more detail what this issue is and what exactly is to be done here.

[Mayank0255]

@Bootspace

Actually someone is already working on this issue, and this is a part of #2.

But you are more than welcomed to work on any other issue or create one yourself