finish android project

The project is in the final part, the only thing that is needed is to fix some errors, verify the connection to firebase and test the functionalities:
-Login with Gmail
-Login with Facebook
-Login with SMS (phone verification)
-Location services (mapbox)
-Merchant service
-User service
-Order service
-Push notification
-Shopping cart
-Order checkout
-Send information to the db
-Receive the data from the db
-Explain the structure in db


All the functionalities are created, you only need to verify that they work correctly and verify the connection to firebase