Bump json5, css-loader, file-loader, style-loader and webpack in /js#8

dependabot[bot] wants to merge 1 commit into

masterdatabooks/databook:masterfrom

dependabot/npm_and_yarn/js/json5-and-css-loader-and-file-loader-and-style-loader-and-webpack-2.2.2databooks/databook:dependabot/npm_and_yarn/js/json5-and-css-loader-and-file-loader-and-style-loader-and-webpack-2.2.2Copy head branch name to clipboard