Use custom action bar view for setup/compose

app/src/main/java/eu/faircode/email/ActivityCompose.java

@@ -48,6 +48,8 @@ public class ActivityCompose extends ActivityBase implements FragmentManager.OnB
         setContentView(R.layout.activity_compose);
 
         getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+        getSupportActionBar().setCustomView(R.layout.action_bar);
+        getSupportActionBar().setDisplayShowCustomEnabled(true);
 
         getSupportFragmentManager().addOnBackStackChangedListener(this);
 

app/src/main/java/eu/faircode/email/ActivitySetup.java

@@ -151,6 +151,8 @@ public class ActivitySetup extends ActivityBase implements FragmentManager.OnBac
         setContentView(view);
 
         getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+        getSupportActionBar().setCustomView(R.layout.action_bar);
+        getSupportActionBar().setDisplayShowCustomEnabled(true);
 
         drawerLayout = findViewById(R.id.drawer_layout);
         drawerLayout.setScrimColor(Helper.resolveColor(this, R.attr.colorDrawerScrim));