feat(remote-desktop): expose display zoom controls for RDP (#1514)

plugins/remote-desktop/src/frontend/GuacamoleToolbar.tsx

@@ -385,7 +385,7 @@ export const GuacamoleToolbar: React.FC<GuacamoleToolbarProps> = ({
               </>
             )}
 
-            {protocol === "vnc" && (
+            {isRdpVnc && (
               <>
                 <div className={SEP} />
                 <TipIconBtn

plugins/remote-desktop/tests/frontend/GuacamoleToolbar.test.tsx

@@ -54,7 +54,9 @@ describe("GuacamoleToolbar Windows key", () => {
     expect(sendKey).toHaveBeenCalledWith(0xffeb, true);
   });
 
-  it("exposes VNC zoom controls without showing them for RDP", () => {
+  it.each(["vnc", "rdp"] as const)(
+    "exposes working zoom controls for %s",
+    (protocol) => {
       const zoomIn = vi.fn(() => 1.25);
       const zoomOut = vi.fn(() => 0.75);
       const resetZoom = vi.fn(() => 1);
@@ -73,7 +75,11 @@ describe("GuacamoleToolbar Windows key", () => {
         } satisfies GuacamoleDisplayHandle,
       } as React.RefObject<GuacamoleDisplayHandle>;
       const { getByLabelText, getByText } = render(
-      <GuacamoleToolbar displayRef={displayRef} protocol="vnc" zoom={1.25} />,
+        <GuacamoleToolbar
+          displayRef={displayRef}
+          protocol={protocol}
+          zoom={1.25}
+        />,
       );
 
       fireEvent.click(getByLabelText("remoteDesktop.toolbar.zoomOut"));
@@ -82,7 +88,8 @@ describe("GuacamoleToolbar Windows key", () => {
       expect(zoomOut).toHaveBeenCalledOnce();
       expect(zoomIn).toHaveBeenCalledOnce();
       expect(resetZoom).toHaveBeenCalledOnce();
-  });
+    },
+  );
 
   it("offers an explicit session-only hide action", () => {
     const onHide = vi.fn();