fix NPE for contacts view

Signed-off-by: Marcel Hibbe <dev@mhibbe.de>

app/src/main/java/com/nextcloud/talk/adapters/items/UserItem.java

@@ -330,6 +330,7 @@ public class UserItem extends AbstractFlexibleItem<UserItem.UserItemViewHolder>
         @Nullable
         @BindView(R.id.participant_status_emoji)
         com.vanniktech.emoji.EmojiEditText participantEmoji;
+        @Nullable
         @BindView(R.id.user_status_image)
         ImageView userStatusImage;
         @Nullable