Adding Bottom Navigation bar

pubspec.yaml

@@ -32,6 +32,7 @@ dependencies:
   firebase_auth: 0.18.2
   google_sign_in: ^4.5.6
   flutter_login_facebook: 0.4.0+1
+  flutter_auth_buttons: ^0.10.0
 
 dev_dependencies:
   flutter_test:
@@ -48,6 +49,9 @@ flutter:
   # the material Icons class.
   uses-material-design: true
 
+  assets:
+    - assets/images/
+
   # To add assets to your application, add an assets section, like this:
   # assets:
   #   - images/a_dot_burr.jpeg