fix(xsettings): restrict service to X11 session only

1. Add ExecCondition to XSettings service to skip on Wayland sessions
2. Add session type condition to plugin JSON for X11-only loading

Log: Restrict the XSettings plugin and service to X11 session only

fix(xsettings): 限制服务仅在 X11 会话下运行

1. 为 XSettings 服务添加 ExecCondition，在 Wayland 会话时跳过启动
2. 为插件 JSON 添加 sessionType 条件，仅 X11 下加载

Log: 限制 XSettings 插件和服务仅在 X11 会话下运行
PMS: BUG-367635

Author: mhduiy

src/plugin-qt/xsettings/misc/org.deepin.dde.XSettings1.service

@@ -11,6 +11,7 @@ After=treeland-sd.service
 [Service]
 Type=dbus
 BusName=org.deepin.dde.XSettings1
+ExecCondition=/bin/sh -c 'test "$XDG_SESSION_TYPE" != "wayland" || exit 2'
 ExecStart=/usr/bin/deepin-service-manager -n org.deepin.dde.XSettings1
 Restart=on-failure
 RestartSec=3

src/plugin-qt/xsettings/misc/plugin-dde-xsettings.json

@@ -3,6 +3,9 @@
   "libPath": "libplugin-dde-xsettings.so",
   "startType": "Resident",
   "pluginType": "qt",
+  "condition": {
+    "sessionType": "x11"
+  },
   "policy": [
     {
       "path": "/org/deepin/dde/XSettings1"