env variables handling

js/ui/pushSettingsUI.js

@@ -1,6 +1,6 @@
 // pushSettingsUI.js - UI handling for push notification settings
 import { setupPushNotifications } from '../services/serviceWorkerManager.js';
-import { FLIC_BUTTON_ID } from '../config.js';
+import { FLIC_BUTTON_ID, getBackendUrl} from '../config.js';
 
 // --- DOM Elements ---
 const elements = {
@@ -381,20 +381,9 @@ export async function sendSubscriptionToServer() {
         'Authorization': createBasicAuthHeader(credentials)
     };
     
-    // Import the backend URL from config
-    let backendUrl;
-    try {
-        const configModule = await import('../config.js');
-        backendUrl = configModule.BACKEND_URL;
-    } catch (error) {
-        // No alert, just log the error and return
-        console.error('Could not get backend URL from config:', error);
-        return;
-    }
-    
     try {
         // Make the request to the server
-        const response = await fetch(`${backendUrl}/subscribe`, {
+        const response = await fetch(`${getBackendUrl()}/subscribe`, {
             method: 'POST',
             body: JSON.stringify({ 
                 button_id: FLIC_BUTTON_ID,