fix: 设为纯托盘应用，启动不再在Dock显示图标

将Info.plist的LSUIElement改为true，应用以accessory模式启动，
永不显示Dock图标和系统菜单栏。移除运行时切换Dock可见性的
showDockIcon()/hideDockIcon()及其C实现setDockIconVisible，
这些调用在accessory模式下已无意义。activateApp()保留用于
窗口置于前台获取焦点。

internal/ui/app.go

@@ -130,7 +130,6 @@ func Run() {
 				fyne.Do(func() {
 					a.windowHidden = false
 					activateApp()
-					showDockIcon()
 					a.window.Show()
 					a.window.RequestFocus()
 				})
@@ -149,7 +148,6 @@ func Run() {
 			if a.windowHidden {
 				a.windowHidden = false
 				activateApp()
-				showDockIcon()
 				fyne.Do(func() {
 					if a.windowHidden {
 						return
@@ -173,7 +171,6 @@ func Run() {
 	a.window.SetCloseIntercept(func() {
 		if cfg.CloseToTray {
 			a.windowHidden = true
-			hideDockIcon()
 			a.window.Hide()
 		} else {
 			a.quit()

internal/ui/dock_darwin.go

@@ -25,12 +25,6 @@ static BOOL appShouldHandleReopen(id self, SEL cmd, id sender, BOOL flag) {
     return YES;
 }
 
-static void setDockIconVisible(int visible) {
-	Class cls = objc_getClass("NSApplication");
-	id app = ((id (*)(Class, SEL))objc_msgSend)(cls, sel_getUid("sharedApplication"));
-	((void (*)(id, SEL, long))objc_msgSend)(app, sel_getUid("setActivationPolicy:"), visible ? 0 : 1);
-}
-
 static void cmActivateApp(void) {
 	Class cls = objc_getClass("NSApplication");
 	id app = ((id (*)(Class, SEL))objc_msgSend)(cls, sel_getUid("sharedApplication"));
@@ -53,9 +47,6 @@ static void cmRegisterReopenHandler(void) {
 */
 import "C"
 
-func showDockIcon() { C.setDockIconVisible(1) }
-func hideDockIcon() { C.setDockIconVisible(0) }
-
 func activateApp() { C.cmActivateApp() }
 
 func registerReopenHandler() { C.cmRegisterReopenHandler() }

internal/ui/dock_other.go

@@ -4,9 +4,6 @@ package ui
 
 var onAppActive func()
 
-func showDockIcon() {}
-func hideDockIcon() {}
-
 func activateApp() {}
 
 func registerReopenHandler() {}

internal/ui/tray.go

@@ -63,7 +63,6 @@ func (a *App) setupTray() {
 		fyne.NewMenuItem(i18n.T("TrayShowWindow"), func() {
 			a.windowHidden = false
 			activateApp()
-			showDockIcon()
 			a.window.Show()
 			a.window.RequestFocus()
 		}),

resources/Info.plist

@@ -32,7 +32,7 @@
 	<key>NSHighResolutionCapable</key>
 	<true/>
 	<key>LSUIElement</key>
-	<false/>
+	<true/>
 	<key>NSAppTransportSecurity</key>
 	<dict>
 		<key>NSAllowsArbitraryLoads</key>