Too many generic around the configuration

[kamaz]

At the moment we have a lot of generics around environment and maybe that is ok but it would be review how that would work in context of App. Application would become a type that would define a generic which then can be used to pull other parts like config, payload etc..

// maybe we need to have App Config defined in the same way as we have Handler
// type Input = {D: dependencies, C: config, R: result, L: logger, P: Payload}
// App<Input, Output>