v0.2.2 - Adapt to danser v0.6.9

This program is still in beta. Please read the README.md at first before using.
这个程序还在测试阶段，请在使用前阅读 README-zh.md 文件的内容。

Updated:

1. Adapt to danser v0.6.9, add Local Audio Offset and Grace End Time, and FFmpeg can now be put in {danser dir}/ffmpeg/* to not bloat the main directory.
2. Add Open Output Folder Button in the General Tab.
3. Auto save window size.
4. Icon with higher resolution.
5. Add ModsOnly option in scoreboard.
6. add exception handling for osr file format error.