fix: adapt to latest type of React.FC

Author: licg9999

src/react/SpreadoSetupProvider.tsx

@@ -1,11 +1,12 @@
-import React, {FC} from 'react';
+import React, {FC, ReactNode} from 'react';
 
 import {SpreadoSetup} from '../core';
 
 export const SpreadoSetupContext = React.createContext<SpreadoSetup | undefined>(undefined);
 
 export type SpreadoProviderProps = {
   setup: SpreadoSetup;
+  children?: ReactNode;
 };
 
 export const SpreadoSetupProvider: FC<SpreadoProviderProps> = ({setup, children}) => {