Wait for stream to load for invitation test

features/desktop/invitations.feature

@@ -52,7 +52,8 @@ Feature: Invitations
 
   Scenario: sends an invitation from the stream
     When I sign in as "alice@alice.alice"
-    And I press the first "a.invitations-link" within "#no_contacts"
+    Then I should see "There are no posts to display here yet." within ".no-posts-info"
+    When I press the first "a.invitations-link" within "#no_contacts"
     Then I should see "Invite someone to join diaspora*!" within "#invitationsModalLabel"
     And I fill in the following:
       | email_inviter_emails         | alex@example.com    |