Merge branch '@stanleyoos/docs-fundamentals-replace-low-quality-images' of github.com:react-navigation/react-navigation.github.io into @stanleyoos/docs-fundamentals-replace-low-quality-images

Author: stanleyoos

versioned_docs/version-6.x/navigation-lifecycle.md

@@ -96,12 +96,12 @@ function Profile() {
   useFocusEffect(
     React.useCallback(() => {
       // Do something when the screen is focused
-      Alert.alert("ProfileScreen focus effect");
-      
+      Alert.alert('ProfileScreen focus effect');
+
       return () => {
         // Do something when the screen is unfocused
         // Useful for cleanup functions
-        Alert.alert("ProfileScreen focus effect cleanup");
+        Alert.alert('ProfileScreen focus effect cleanup');
       };
     }, [])
   );