Invalidate accounts/identities adapter

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

@@ -87,6 +87,7 @@ public class FragmentDialogSelectAccount extends FragmentDialogBase {
                         if (!account.isOutlook())
                             accounts.remove(account);
                 adapter.addAll(accounts);
+                adapter.notifyDataSetChanged();
             }
 
             @Override

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

@@ -79,6 +79,7 @@ public class FragmentDialogSelectIdentity extends FragmentDialogBase {
             protected void onExecuted(Bundle args, List<TupleIdentityEx> identities) {
                 EntityLog.log(context, "Composable identities=" + (identities == null ? null : identities.size()));
                 adapter.addAll(identities);
+                adapter.notifyDataSetChanged();
             }
 
             @Override