Fabric: clean up RPC and support show/hide toolbar message (#1680)

* Use Promise for allResourceToken fabric message. Cleanup token message handling and add debounce.

* Improve rpc and update initalization flow

* Fix format

* Rev up message names for new version

* Refactor RPC with Fabric

* Build fix

* Fix build

* Fix format

* Update Message types

* Fix format

* Fix comments

* Fabric toolbar style and support to show/hide it (#1720)

* Add Fabric specific Toolbar design

* Add Fabric message to show/hide the Toolbar

* Fix CommandBarUtil formatting

* Update zustand state on setToolbarStatus to trigger a redraw of the command bar with updated visibility

---------

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

* Fix format

---------

Co-authored-by: Vsevolod Kukol <sevoku@microsoft.com>

src/Explorer/Menus/CommandBar/CommandBarUtil.tsx

@@ -25,7 +25,10 @@ import { MemoryTracker } from "./MemoryTrackerComponent";
  * @param btns
  */
 export const convertButton = (btns: CommandButtonComponentProps[], backgroundColor: string): ICommandBarItemProps[] => {
-  const buttonHeightPx = StyleConstants.CommandBarButtonHeight;
+  const buttonHeightPx =
+    configContext.platform == Platform.Fabric
+      ? StyleConstants.FabricCommandBarButtonHeight
+      : StyleConstants.CommandBarButtonHeight;
 
   const hoverColor =
     configContext.platform == Platform.Fabric ? StyleConstants.FabricAccentLight : StyleConstants.AccentLight;
@@ -112,6 +115,7 @@ export const convertButton = (btns: CommandButtonComponentProps[], backgroundCol
           splitButtonContainer: {
             marginLeft: 5,
             marginRight: 5,
+            height: buttonHeightPx,
           },
         },
         className: btn.className,