Not compatible with css-loader@3.0.0

I have localIdentName set to '[path]___[name]__[local]___[hash:base64:5]' in the css-loader, but as of 3.0.0 this generates a name (in css-loader) where slashes and dots aren't replaced with dashes but rather escaped.

That's a bit uglier to read now (anyway, they aren't really meant for humans) -- but the main problem is that this plugin now generates invalid className values because it's using the old logic.

Example:

className: rb-client-js-modules-landing-___Landing-module__landing-page-card___kz6iY css: .rb\/client\/js\/modules\/landing\/___Landing\.module__landing-page-card___kz6iY