Rename Result to TaskState

[realmazharhussain]

Loading is a state, not a result. Result means an outcome. Something's outcome is always either Success or Failure. A Failure is caused by an error (a.k.a. Throwable).

A task can be in one of the following states;

• Not Started (not useful)
• Ongoing/In Progress
• Ended (either successfully or unsuccessfully)

A result of a task is also one of its states (Ended). Because of that, Success and Failure can easily be incorporated into TakState.

In the end, what we get is:

sealed interface TaskState<out T> {
    data class Success<T>(val data: T) : TaskState<T>
    data class Failure(val cause: Throwable) : TaskState<Nothing>
    data object Ongoing : TaskState<Nothing>
}

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If this is acceptable, let me know, I'll open a PR.