Templates: update React's component's State and Property type

templates/ReactSpa/ClientApp/components/Counter.tsx

@@ -4,7 +4,7 @@ interface CounterState {
     currentCount: number;
 }
 
-export class Counter extends React.Component<any, CounterState> {
+export class Counter extends React.Component<{}, CounterState> {
     constructor() {
         super();
         this.state = { currentCount: 0 };

templates/ReactSpa/ClientApp/components/FetchData.tsx

@@ -6,7 +6,7 @@ interface FetchDataExampleState {
     loading: boolean;
 }
 
-export class FetchData extends React.Component<any, FetchDataExampleState> {
+export class FetchData extends React.Component<{}, FetchDataExampleState> {
     constructor() {
         super();
         this.state = { forecasts: [], loading: true };

templates/ReactSpa/ClientApp/components/Home.tsx

@@ -1,6 +1,6 @@
 import * as React from 'react';
 
-export class Home extends React.Component<any, void> {
+export class Home extends React.Component<{}, {}> {
     public render() {
         return <div>
             <h1>Hello, world!</h1>

templates/ReactSpa/ClientApp/components/Layout.tsx

@@ -5,7 +5,7 @@ export interface LayoutProps {
     body: React.ReactElement<any>;
 }
 
-export class Layout extends React.Component<LayoutProps, void> {
+export class Layout extends React.Component<LayoutProps, {}> {
     public render() {
         return <div className='container-fluid'>
             <div className='row'>

templates/ReactSpa/ClientApp/components/NavMenu.tsx

@@ -1,7 +1,7 @@
 import * as React from 'react';
 import { Link } from 'react-router';
 
-export class NavMenu extends React.Component<any, void> {
+export class NavMenu extends React.Component<{}, {}> {
     public render() {
         return <div className='main-nav'>
                 <div className='navbar navbar-inverse'>