Added route to 404 Page (#94)

* Added Route to 404 component

* npm run format executed

* npm run format executed

Author: shankhanil007

package-lock.json

@@ -42,7 +42,7 @@ const useStyles = makeStyles(() =>
         '-webkit-font-smoothing': 'antialiased',
         '-moz-osx-font-smoothing': 'grayscale',
         height: '100%',
-        width: '100%',
+        width: '100%'
       },
       body: {
         height: '100%',

src/App.js

@@ -9,6 +9,7 @@ import LoadingScreen from 'src/components/LoadingScreen';
 import CoursesView from 'src/views/pages/CoursesView';
 import ProfileView from 'src/views/pages/ProfileView';
 import ApplicationsView from 'src/views/pages/ApplicationsView';
+import Error404View from 'src/views/pages/Error404View';
 
 import MachineLearningView from 'src/views/pages/Courses/MachineLearningView';
 import AlgoJavaView from 'src/views/pages/Courses/AlgoJavaView';
@@ -132,6 +133,8 @@ const renderRoutes = () => (
           </MainLayout>
         )}
       />
+
+      <Route component={Error404View} />
     </Switch>
   </Suspense>
 );