[darwin] Ensure menu updates occur on main thread

Author: leaanthony

docs/src/content/docs/changelog.mdx

@@ -89,6 +89,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fixed hidden menu items on macOS by [@leaanthony](https://github.com/leaanthony)
 - Fixed handling and formatting of errors in message processors by [@fbbdev](https://github.com/fbbdev) in [#4066](https://github.com/wailsapp/wails/pull/4066)
 -  Fixed skipped service shutdown when quitting application by [@fbbdev](https://github.com/fbbdev) in [#4066](https://github.com/wailsapp/wails/pull/4066)
+-  Ensure menu updates occur on the main thread by [@leaanthony](https://github.com/leaanthony)
 
 ### Changed
 

v3/pkg/application/menu_darwin.go

@@ -72,12 +72,14 @@ func newMenuImpl(menu *Menu) *macosMenu {
 }
 
 func (m *macosMenu) update() {
-	if m.nsMenu == nil {
-		m.nsMenu = C.createNSMenu(C.CString(m.menu.label))
-	} else {
-		C.clearMenu(m.nsMenu)
-	}
-	m.processMenu(m.nsMenu, m.menu)
+	InvokeSync(func() {
+		if m.nsMenu == nil {
+			m.nsMenu = C.createNSMenu(C.CString(m.menu.label))
+		} else {
+			C.clearMenu(m.nsMenu)
+		}
+		m.processMenu(m.nsMenu, m.menu)
+	})
 }
 
 func (m *macosMenu) processMenu(parent unsafe.Pointer, menu *Menu) {