change start activity flags

service/src/main/java/com/github/kr328/clash/service/ClashNotification.kt

@@ -37,7 +37,7 @@ class ClashNotification(private val context: Service) {
                         MAIN_ACTIVITY_NAME
                     )
                 ).setFlags(
-                    Intent.FLAG_ACTIVITY_SINGLE_TOP or Intent.FLAG_ACTIVITY_CLEAR_TOP
+                    Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK
                 ),
                 PendingIntent.FLAG_UPDATE_CURRENT
             )