Linter: Prevent dynamic where's in eloquent

[ventrec]

Prevent the use of dynamic where's when using eloquent. Dynamic where's makes it much harder to refactor code, and harder to get an overview of where different model properties have been used.

Important
Remember to make a whitelist of valid where methods. This list should contain all "where" methods on a collection aswell as the valid "where" methods for eloquent.

We also need a way to identify what is related to an eloquent query in order to avoid accidental targeting of other libraries / services.