fix: 修复第一次安装系统，高分辨屏幕缩放错误 (#281)

缩放不为0时,采用了配置的缩放

Log:
pms: TASK-371809

Author: ECQZXC

misc/dsettings/org.deepin.XSettings.json

@@ -228,7 +228,7 @@
       "visibility": "private"
     },
     "scale-factor": {
-      "value": 1.0,
+      "value": 0,
       "serial": 0,
       "flags": [],
       "name": "Text Scale Factor",