Remove dark theme

app/_layout.tsx

@@ -12,6 +12,7 @@ import functions from "@react-native-firebase/functions";
 import firestore from "@react-native-firebase/firestore";
 import auth from "@react-native-firebase/auth";
 import {QueryClient, QueryClientProvider} from "react-query";
+import {Toast} from "react-native-ui-lib";
 
 // Prevent the splash screen from auto-hiding before asset loading is complete.
 SplashScreen.preventAutoHideAsync();
@@ -26,7 +27,6 @@ if (__DEV__) {
 }
 
 export default function RootLayout() {
-    const colorScheme = useColorScheme();
     const [loaded] = useFonts({
         SpaceMono: require('../assets/fonts/SpaceMono-Regular.ttf'),
     });
@@ -44,12 +44,13 @@ export default function RootLayout() {
     return (
         <QueryClientProvider client={queryClient}>
             <AuthContextProvider>
-                <ThemeProvider value={colorScheme === 'dark' ? DarkTheme : DefaultTheme}>
+                <ThemeProvider value={DefaultTheme}>
                     <Stack>
                         <Stack.Screen name="(auth)" options={{headerShown: false}}/>
                         <Stack.Screen name="(unauth)" options={{headerShown: false}}/>
                         <Stack.Screen name="+not-found"/>
                     </Stack>
+                    <Toast />
                 </ThemeProvider>
             </AuthContextProvider>
         </QueryClientProvider>