(fix): couple issues when configs fails to load

src/app/modules/search/bar.component.ts

@@ -67,7 +67,7 @@ export class SearchBarComponent {
   }
 
   unListen() {
-    this.routerSubscription.unsubscribe();
+    if (this.routerSubscription) this.routerSubscription.unsubscribe();
   }
 
   handleUrl(url: string) {

src/app/services/features.service.ts

@@ -19,6 +19,8 @@ export class FeaturesService {
   has(feature: string): boolean {
     const features = this.configs.get('features');
 
+    if (!features) return false;
+
     if (!feature) {
       throw new Error('Invalid feature ID');
     }