fix: Chart subscriptions shouldn't reverse positions (#6546)

Fixes DH-18389

Author: niloc132

web/client-api/src/main/java/io/deephaven/web/client/api/widget/plot/ChartData.java

@@ -72,7 +72,7 @@ public void update(AbstractTableSubscription.SubscriptionEventData tableData) {
 
     private void replaceDataRange(SubscriptionTableData tableData, Range positions) {
         RangeSet keys = tableData.getFullIndex().getRange()
-                .subsetForPositions(RangeSet.ofRange(positions.getFirst(), positions.getLast()), true);
+                .subsetForPositions(RangeSet.ofRange(positions.getFirst(), positions.getLast()), false);
         // we don't touch the indexes at all, only need to walk each column and replace values in this range
         for (Entry<String, Map<JsFunction<Any, Any>, JsArray<Any>>> columnMap : cachedData.entrySet()) {
             Column col = table.findColumn(columnMap.getKey());