Add dynamic tray menu update functionality

Introduced a `SetMenuItems` method in `Tray.cs` to enable updating the tray's context menu dynamically. This method clears existing menu items, adds new ones, and registers click handlers. Added XML documentation for the method.

Author: davidroth

src/ElectronNET.API/API/Tray.cs

@@ -220,11 +220,33 @@ public async Task Show(string image, MenuItem[] menuItems)
             _items.Clear();
             _items.AddRange(menuItems);
 
+            RegisterMenuItemClickedHandler();
+        }
+
+        /// <summary>
+        /// Sets the tray menu items.
+        /// </summary>
+        /// <remarks>Calling this method updates the context menu with the specified items. Any previously
+        /// set menu items will be replaced.</remarks>
+        /// <param name="menuItems">An array of <see cref="MenuItem"/> objects representing the menu items to display in the tray menu.
+        /// Cannot be null.</param>
+        public async Task SetMenuItems(MenuItem[] menuItems)
+        {
+            menuItems.AddMenuItemsId();
+            await BridgeConnector.Socket.Emit("set-contextMenu", [menuItems]).ConfigureAwait(false);
+            _items.Clear();
+            _items.AddRange(menuItems);
+
+            RegisterMenuItemClickedHandler();
+        }
+
+        private void RegisterMenuItemClickedHandler()
+        {
             BridgeConnector.Socket.Off("trayMenuItemClicked");
             BridgeConnector.Socket.On<string>("trayMenuItemClicked", (id) =>
             {
                 MenuItem menuItem = _items.GetMenuItem(id);
-                menuItem?.Click();
+                menuItem?.Click?.Invoke();
             });
         }
 

src/ElectronNET.Host/api/tray.js

@@ -59,12 +59,7 @@ export = (socket: Socket) => {
         tray.value = new Tray(trayIcon);
 
         if (menuItems) {
-            const menu = Menu.buildFromTemplate(menuItems);
-
-            addMenuItemClickConnector(menu.items, (id) => {
-                electronSocket.emit('trayMenuItemClicked', id);
-            });
-            tray.value.setContextMenu(menu);
+            applyContextMenu(menuItems);
         }
     });
 
@@ -74,6 +69,12 @@ export = (socket: Socket) => {
         }
     });
 
+    socket.on('set-contextMenu', (menuItems) => {
+        if (menuItems && tray.value) {
+            applyContextMenu(menuItems);
+        }
+    });
+
     socket.on('tray-setImage', (image) => {
         if (tray.value) {
             tray.value.setImage(image);
@@ -136,6 +137,14 @@ export = (socket: Socket) => {
         }
     });
 
+    function applyContextMenu(menuItems) {
+        const menu = Menu.buildFromTemplate(menuItems);
+        addMenuItemClickConnector(menu.items, (id) => {
+            electronSocket.emit('trayMenuItemClicked', id);
+        });
+        tray.value.setContextMenu(menu);
+    }
+
     function addMenuItemClickConnector(menuItems, callback) {
         menuItems.forEach((item) => {
             if (item.submenu && item.submenu.items.length > 0) {