Fix: fix app title restoration (#13208)

src-ui/src/environments/environment.ts

@@ -2,11 +2,13 @@
 // `ng build --configuration production` replaces `environment.ts` with `environment.prod.ts`.
 // The list of file replacements can be found in `angular.json`.
 
+export const DEFAULT_APP_TITLE = 'Paperless-ngx'
+
 export const environment = {
   production: false,
   apiBaseUrl: 'http://localhost:8000/api/',
   apiVersion: '10',
-  appTitle: 'Paperless-ngx',
+  appTitle: DEFAULT_APP_TITLE,
   tag: 'dev',
   version: 'DEVELOPMENT',
   webSocketHost: 'localhost:8000',