feat: add alert sound for timer and time-until done

App.js

@@ -3,6 +3,7 @@ import { BackHandler, Platform, StatusBar, Modal, View, Image, StyleSheet, Butto
 import * as ScreenOrientation from 'expo-screen-orientation';
 import * as SplashScreen from 'expo-splash-screen';
 import { Accelerometer } from 'expo-sensors';
+import { Audio } from 'expo-av';
 import FocusScreen from './src/screens/FocusScreen';
 import HomeScreen from './src/screens/HomeScreen';
 import TimeUntilScreen from './src/screens/TimeUntilScreen';
@@ -194,6 +195,23 @@ export default function App() {
   const timerSec = timerRemaining % 60;
   const tuCountdown = getTuCountdown();
 
+  const playSound = async () => {
+    try {
+      const { sound } = await Audio.Sound.createAsync(
+        { uri: 'https://shx.reversed.dev/u/mCgT76.mp3' },
+        { shouldPlay: true, volume: 1.0 }
+      );
+    } catch (error) {
+      console.log('Error playing sound:', error);
+    }
+  };
+
+  useEffect(() => {
+    if (timerDone || tuIsOver) {
+      playSound();
+    }
+  }, [timerDone, tuIsOver]);
+
   if (focusMode) {
     return (
       <FocusScreen