Separate Fabric-specific message types (#1848)

* Update message de->fabric to v3

* Reinstate get authorization token path which doesn't get called every 5 minutes anymore

* Remove obsolete comment

* Add missing types

* Fix format

* Fix build issue

* Revert "Reinstate get authorization token path which doesn't get called every 5 minutes anymore"

This reverts commit a3f3511043.

* Keep 3 old fabric message types enums for compatibility with the portal

* Re-add warning comment about not changing existing message type enums

---------

Co-authored-by: Laurent Nguyen <languye@microsoft.com>

src/hooks/useKnockoutExplorer.ts

@@ -1,5 +1,6 @@
 import { createUri } from "Common/UrlUtility";
 import { DATA_EXPLORER_RPC_VERSION } from "Contracts/DataExplorerMessagesContract";
+import { FabricMessageTypes } from "Contracts/FabricMessageTypes";
 import { FABRIC_RPC_VERSION, FabricMessageV2 } from "Contracts/FabricMessagesContract";
 import Explorer from "Explorer/Explorer";
 import { useSelectedNode } from "Explorer/useSelectedNode";
@@ -156,7 +157,7 @@ async function configureFabric(): Promise<Explorer> {
     );
 
     sendMessage({
-      type: MessageTypes.Ready,
+      type: FabricMessageTypes.Ready,
       id: "ready",
       params: [DATA_EXPLORER_RPC_VERSION],
     });