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

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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