Adding style and form for creating attestation

app/src/main/java/fr/sanchezm/attestationsCovid19/MainActivity.kt

@@ -15,6 +15,8 @@ class MainActivity : AppCompatActivity() {
 
         val navController = findNavController(R.id.nav_host_fragment)
 
+        navController
+        actionBar?.hide()
         navView.setupWithNavController(navController)
         navView.setBackgroundColor(resources.getColor(R.color.itemBackground, theme))
     }

app/src/main/java/fr/sanchezm/attestationsCovid19/ui/add/AddFragment.kt

@@ -4,7 +4,6 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import android.widget.TextView
 import androidx.fragment.app.Fragment
 import androidx.lifecycle.Observer
 import androidx.lifecycle.ViewModelProviders
@@ -22,9 +21,7 @@ class AddFragment : Fragment() {
         homeViewModel =
             ViewModelProviders.of(this).get(AddViewModel::class.java)
         val root = inflater.inflate(R.layout.fragment_add_attestation, container, false)
-        val textView: TextView = root.findViewById(R.id.text_home)
         homeViewModel.text.observe(viewLifecycleOwner, Observer {
-            textView.text = it
         })
         return root
     }