Register indpendent service token

src/data/config.rs

@@ -154,6 +154,11 @@ impl Config {
     pub fn server_listen_address(&self) -> String {
         format!("{}:{}", self.listen_address, self.port)
     }
+
+    /// Check if independent push notifications service is enabled
+    pub fn is_independent_push_notifications_service_enabled(&self) -> bool {
+        self.independent_push_service.is_some()
+    }
 }
 
 /// Get an instance of the configuration