Add dynamic notification

Co-authored-by: Moe <moe@example.com>
Co-authored-by: 世界 <i@sekai.icu>

app/src/main/java/io/nekohasekai/sfa/Application.kt

@@ -45,6 +45,7 @@ class Application : Application() {
         val connectivity by lazy { application.getSystemService<ConnectivityManager>()!! }
         val packageManager by lazy { application.packageManager }
         val powerManager by lazy { application.getSystemService<PowerManager>()!! }
+        val notificationManager by lazy { application.getSystemService<NotificationManager>()!! }
     }
 
 }