implement router page

frontend/src/router/router.js

+import React from "react";
+import { NavigationContainer } from '@react-navigation/native';
+import { createNativeStackNavigator } from '@react-navigation/native-stack';
+import Home from "../screen/Home";
+
+import Register from "../screen/auth/Register";
+import Login from "../screen/auth/Login";
+import Splash from "../screen/splash/Splash";
+
+const Stack = createNativeStackNavigator();
+
+const AppRouter = () => {
+return(
+    <NavigationContainer>
+      <Stack.Navigator initialRouteName="Splash">
+        <Stack.Screen options={{headerShown:false}} name="Home" component={Home} />
+        <Stack.Screen options={{headerShown:false}} name="Splash" component={Splash} />
+        <Stack.Screen options={{headerShown:false}} name="Register" component={Register} />
+        <Stack.Screen options={{headerShown:false}} name="Login" component={Login} />
+      </Stack.Navigator>
+    </NavigationContainer>
+)
+}
+
+export default AppRouter;
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