feat: set fullscreen launcher window title for window manager

identification

Changed the window title of the fullscreen launcher frame from
"Fullscreen Launchpad" to "org.deepin.ds.launchpad.fullscreen". This
modification sets the X window property _NET_WM_NAME to a standardized
identifier, allowing window managers to easily distinguish dde-shell
application windows from other windows in the system.

Log: Set fullscreen launcher window title to
org.deepin.ds.launchpad.fullscreen for window manager identification

Influence:
1. Verify the fullscreen launcher window title is correctly set to the
new identifier
2. Test window manager functionality that depends on window
identification
3. Ensure the change does not affect launcher visibility or rendering
4. Check that other window properties remain unchanged

feat: 设置全屏启动器窗口标题以便窗管识别

将全屏启动器框架的窗口标题从"Fullscreen Launchpad"改
为"org.deepin.ds.launchpad.fullscreen"。此修改设置了X窗口属性
_NET_WM_NAME为标准化的标识符，使窗口管理器能够轻松区分dde-shell应用程序
窗口与系统中的其他窗口。

Log: 设置全屏启动器窗口标题为org.deepin.ds.launchpad.fullscreen以便窗管
识别

Influence:
1. 验证全屏启动器窗口标题是否正确设置为新标识符
2. 测试依赖于窗口识别的窗口管理器功能
3. 确保此更改不影响启动器的可见性或渲染
4. 检查其他窗口属性是否保持不变

Author: 18202781743

shell-launcher-applet/package/launcheritem.qml

@@ -171,7 +171,7 @@ AppletItem {
 
     property var fullscreenFrame: ApplicationWindow {
         objectName: "FullscreenFrameApplicationWindow"
-        title: "Fullscreen Launchpad"
+        title: "org.deepin.ds.launchpad.fullscreen"
         visible: LauncherController.visible && (LauncherController.currentFrame !== "WindowedFrame")
         // Set transparent on kwin will cause abnormal rounded corners in FolderPopup, Bug: 10219
         color: DesktopIntegration.isTreeLand() ? "transparent" : palette.window