Fix for webpack v5: find dynamic chunks in stats.chunks#105

OliverJAsh wants to merge 2 commits intofaceyspacey:masterfaceyspacey/webpack-flush-chunks:masterfrom

OliverJAsh:webpack-v5-chunk-ids-string-namedOliverJAsh/webpack-flush-chunks:webpack-v5-chunk-ids-string-namedCopy head branch name to clipboard