use modern api best practises

[RobinMeow]

Closes #126

• [x] make use of TypedResults in controllers
• [x] make use of ValueTaks anywhere appropriate
• [x] use DI for MongoDB, and allow bypass of DomainLayer to InfrastructureLayer for faster and more versatile queries (more versatile meaning less boiler platy code)
  • [x] IRecipeCollection belongs in the infrastructure layer and therefore may expose RecipeDoc