fix can not find chunk in some case

[gxlmyacc]

fix chunk canot find when chunk name like "styles/test.css?db562740a398ac3c4f42e7d579e5b365"

[mike1808]

This solution looks very specific. I think stripping out everything after extenssion and leaving the old code will work better.

[gxlmyacc]

yeah, but I think the original code file.endsWith('.css') looks also specific.
or there's another way to do it, like this:

{ 
   inject: 'head'
   fileResolver (assetsByChunkName, publicPath, file) {
     if (file) return file;
     return assetsByChunkName[name].find(file => file.indexOf('.css') >= 0 && file.indexOf('.css.map') < 0);
   } 
}

[mike1808]

@gxlmyacc I like the current version more than the "fileResolver" option. I will merge it. Thank you!