fromSafePromise error type must be "never"

[lmcsu]

const r = ResultAsync
    .fromSafePromise(new Promise<number>((resolve) => resolve(123)))
    .andThen((num) => {
        return errAsync(num);
    });

its type is ResultAsync<never, unknown> instead of ResultAsync<never, number> because fromSafePromise returns ResultAsync<type, unknown> and "unknown" is kinda heavier than anything else I guess. so everywhere we must write it as fromSafePromise<type, never> to make it work