The IActionResult type is a based abstraction of an ActionResult.
💡 An ActionResult is a return type of a controller method, also called an action method, and serves as the base class for *Result classes. Action methods return models to views, file streams, redirect to other controllers, or whatever is necessary for the task at hand.
It specifies how a response is going to be given for a Specific Request.
The IActionResult return type is appropriate when multiple action result return types are possible in an action.
