Add support for flash messages utilizing redux

resources/scripts/components/App.tsx

@@ -2,16 +2,29 @@ import * as React from 'react';
 import { hot } from 'react-hot-loader/root';
 import { BrowserRouter as Router, Route } from 'react-router-dom';
 import AuthenticationRouter from '@/routers/AuthenticationRouter';
+import { Provider } from 'react-redux';
+import { persistor, store } from '@/redux/configure';
+import { PersistGate } from 'redux-persist/integration/react';
 
 class App extends React.PureComponent {
     render () {
         return (
-            <Router>
-                <div>
-                    <Route exact path="/"/>
-                    <Route path="/auth" component={AuthenticationRouter}/>
-                </div>
-            </Router>
+            <Provider store={store}>
+                <PersistGate persistor={persistor} loading={this.renderLoading()}>
+                    <Router>
+                        <div>
+                            <Route exact path="/"/>
+                            <Route path="/auth" component={AuthenticationRouter}/>
+                        </div>
+                    </Router>
+                </PersistGate>
+            </Provider>
+        );
+    }
+
+    renderLoading () {
+        return (
+            <div className={'spinner spinner-lg'}></div>
         );
     }
 }