v0.0.17

change

1. support light / dark theme for component #3

// 1. for component usage
<DiffView  diffViewTheme="dark / light"  />

// 2. for file usage
const file = new DiffFile(...);
file.initTheme("dark / light")
file.init();
file.buildxxx();

<DiffView diffFile={file} />

2. fix a update error for React StrictMode
3. fix a error for sync widget/extend height on splitView mode