Simplify type usage and eliminate the `TryFrom` overhead in the "sources" Module

[fabriziosestito]

The "sources" module has multiple types created without constructors, relying instead on TryFrom for initialization. This approach unnecessarily complicates the code and reduces readability. The goal is to streamline type creation by introducing proper constructors and removing the overuse of TryFrom, making the module cleaner and easier to maintain.

Acceptance criteria

Remove TryFrom traits in favour of New constructors.