Fix to allow send of Signal invitation SMS to a single person.

Fixes #9970

app/src/main/java/org/thoughtcrime/securesms/ContactSelectionActivity.java

@@ -113,7 +113,7 @@ public abstract class ContactSelectionActivity extends PassphraseRequiredActivit
   }
 
   @Override
-  public boolean onContactSelected(Optional<RecipientId> recipientId, String number) {
+  public boolean onBeforeContactSelected(Optional<RecipientId> recipientId, String number) {
     return true;
   }