fix: Promises in Tree subscriptions should reject if aborted (#6616)

Noticed this bug when backporting the original fix. This fix rejects
(instead of resolves) the initial view call when aborted, and correctly
passes the failure off to the callback to drive the next outer promise.

Follow-up #6591

web/client-api/src/main/java/io/deephaven/web/client/api/tree/JsTreeTable.java

@@ -370,7 +370,7 @@ private TicketAndPromise<ClientTableState> makeView(TicketAndPromise<?> prevTick
             viewRequest.setResultViewId(ticket);
             keyTable.then(t -> {
                 if (controller.signal.aborted) {
-                    return Promise.resolve(controller.signal.reason);
+                    return Promise.reject(controller.signal.reason);
                 }
                 if (keyTableData[0].length > 0) {
                     HierarchicalTableViewKeyTableDescriptor expansions = new HierarchicalTableViewKeyTableDescriptor();
@@ -382,7 +382,7 @@ private TicketAndPromise<ClientTableState> makeView(TicketAndPromise<?> prevTick
                         connection.hierarchicalTableServiceClient().view(viewRequest, connection.metadata(), c::apply);
                 controller.signal.addEventListener("abort", e -> viewCreationCall.cancel());
                 return null;
-            }, error -> {
+            }).catch_(error -> {
                 c.apply(error, null);
                 return null;
             });