NOTE :
- Before running the app make sure you have import Collection json in Firestore database which we have provided.
- Before import json in firestore database remember to give rule permission or create Firestore Data. See the Firebase Rules for create Firestore Database and how to give permission in firebase.
Also you can check below video for how to import json in firebase:
VIDEO URL : https://youtu.be/Jd0sW8Wrc5Y?si=AxC6BmWBFwZfZU4a

Follow below steps for Add Wallpapers through Admin Panel

1. We Have already apply all the condition for add,update and delete Wallpaper in firebase

2. All You need to Add Wallpaper through Admin Panel

3. We are saving one value image. If you want to add any keyword just add that key in wallpaper_controller.dart in addData() function.