remove unnecessary logs

Author: cherylqian

src/App.js

@@ -5,7 +5,6 @@ import Background from "./Background";
 class App extends Component {
   render() {
     const { width, height } = this.props.size;
-    console.log(this.props);
     return (
       <div className="App">
         <Background width={width} height={height} />

src/Gallery.js

@@ -112,7 +112,6 @@ class Gallery extends Component {
     let nextIndex =
       (this.state.slideIndex + num + models.length) % models.length;
 
-    console.log(nextIndex);
     this.setState({
       slideIndex: nextIndex
     });

src/Navigation.js

@@ -67,4 +67,6 @@ const DefaultLayout = ({ component: Component, size, ...rest }) => {
 
 const Construction = () => <h1>This page is under construction</h1>;
 
+const NotFound = () => <h1>The page you're looking for does not exist :(</h1>;
+
 export default Navigation;