添加内置德语;修正版本号错误/Add built-in German; Fix version number error

✔ 添加内置德语，添加下拉框选择
✔ 添加德语资源文件
✔ 添加qttabbar图标ico
✔ 添加安装文件在控制面板显示信息
✔ 修正版本号错误

✔ Add built-in German, add drop-down selection
✔ Add German resource file
✔ Add qttabbar icon ico
✔ Add installation files to display information in the control panel
✔ Fix version number error