Fixed recently introduced issue in name rebuilding code causing transactions to be unordered.

This is the likely cause of inconsistent name entries across different nodes, as we can't guarantee that every environment will return the same transaction order from the SQL queries.

src/main/java/org/qortal/controller/repository/NamesDatabaseIntegrityCheck.java

@@ -313,6 +313,10 @@ public class NamesDatabaseIntegrityCheck {
                 transactions.add(transactionData);
             }
         }
+
+        // Sort by lowest timestamp first
+        transactions.sort(Comparator.comparingLong(TransactionData::getTimestamp));
+
         return transactions;
     }