fix PopupProps type error

[duniyalr]

hi;
there is a type error when you want to pass a function instead a of ReactNode to Popup component.
this issue #315
i just changed the type of children in PopupProps to handle this.

[jfilipeferreira96]

Already tested and this will fix the typescript errors.

[DerPipo]

Suggested change

	children: React.ReactNode | ((close: () => void, isClose?: boolean) => React.ReactNode);
	children: React.ReactNode | ((close: () => void, isOpen: boolean) => React.ReactNode);

Shouldn't it be called isOpen (instead of isClose)? And as you can see in line 306, the second param is always provided and cannot be undefined, so the ? is unnecessary.

But otherwise the changes look good and should get merged.