Add onboarding screen + token check

app/_layout.tsx

@@ -1,25 +1,28 @@
-import { DarkTheme, DefaultTheme, ThemeProvider } from '@react-navigation/native';
-import { useFonts } from 'expo-font';
-import { Stack } from 'expo-router';
+import {useFonts} from 'expo-font';
+import {Slot, Stack} from 'expo-router';
 import * as SplashScreen from 'expo-splash-screen';
-import { useEffect } from 'react';
+import {useEffect} from 'react';
 import 'react-native-reanimated';
 
-import { useColorScheme } from '@/hooks/useColorScheme';
+import {AppProvider} from '@/context/AppProvider';
+import {DarkTheme, DefaultTheme, ThemeProvider} from '@react-navigation/native';
+import Toast from 'react-native-toast-message';
 import {AutocompleteDropdownContextProvider} from 'react-native-autocomplete-dropdown';
+import {useColorScheme} from '@/hooks/useColorScheme';
 
 // Prevent the splash screen from auto-hiding before asset loading is complete.
-SplashScreen.preventAutoHideAsync();
+// SplashScreen.preventAutoHideAsync();
 
 export default function RootLayout() {
   const colorScheme = useColorScheme();
+
   const [loaded] = useFonts({
     SpaceMono: require('../assets/fonts/SpaceMono-Regular.ttf'),
   });
 
   useEffect(() => {
     if (loaded) {
-      SplashScreen.hideAsync();
+      // SplashScreen.hideAsync();
     }
   }, [loaded]);
 
@@ -28,14 +31,16 @@ export default function RootLayout() {
   }
 
   return (
-    <AutocompleteDropdownContextProvider>
-      <ThemeProvider value={colorScheme === 'dark' ? DarkTheme : DefaultTheme}>
-        <Stack>
-          <Stack.Screen name="(tabs)" options={{ headerShown: false }} />
-          <Stack.Screen name="+not-found" />
-        </Stack>
-      </ThemeProvider>
-    </AutocompleteDropdownContextProvider>
-
+    <AppProvider>
+      <AutocompleteDropdownContextProvider>
+        <ThemeProvider value={colorScheme === 'dark' ? DarkTheme : DefaultTheme}>
+          <Stack>
+            <Stack.Screen name="(tabs)" options={{headerShown: false}}/>
+            <Stack.Screen name="(onboarding)/start" options={{headerShown: false}}/>
+          </Stack>
+          <Toast/>
+        </ThemeProvider>
+      </AutocompleteDropdownContextProvider>
+    </AppProvider>
   );
 }