Optimized send pending query

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

@@ -247,9 +247,8 @@ public interface DaoMessage {
 
     @Query("SELECT COUNT(*) FROM message" +
             " JOIN folder_view AS folder ON folder.id = message.folder" +
-            " LEFT JOIN operation ON operation.message = message.id" +
             " WHERE " + is_outbox +
-            " AND operation.id IS NULL")
+            " AND NOT ui_snoozed IS NULL")
     LiveData<Integer>  liveOutboxPending();
 
     @Query("SELECT account.name AS accountName" +