chore(package): Update 8 devDependencies to latest

[uirouterbot]

chore(package): Update 8 devDependencies to latest

autoprefixer@^9.8.6: 9.8.6 -> 10.1.0
copy-webpack-plugin@^5.1.1: 5.1.1 -> 7.0.0
css-loader@^3.6.0: 3.6.0 -> 5.0.1
postcss-load-config@^2.1.2: 2.1.2 -> 3.0.0
postcss-loader@^3.0.0: 3.0.0 -> 4.1.0
style-loader@^1.3.0: 1.3.0 -> 2.0.0
webpack@^4.44.2: 4.44.2 -> 5.11.0
webpack-cli@^3.3.12: 3.3.12 -> 4.3.0

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