Upgrade purgecss-webpack-plugin dependency

Author: chasegiunta

package.json

@@ -17,7 +17,7 @@
     "@vue/cli-service": "^4.0.0",
     "filemanager-webpack-plugin": "^2.0.5",
     "glob-all": "^3.1.0",
-    "purgecss-webpack-plugin": "^1.5.0",
+    "purgecss-webpack-plugin": "^2.0.0",
     "purgecss-whitelister": "^2.1.0",
     "vue-template-compiler": "^2.6.0",
     "webpack-manifest-plugin": "^2.1.4"

vue.config.js

@@ -25,15 +25,6 @@ config = {
   purgecssWhitelistPatterns: [],
 };
 
-// Custom PurgeCSS extractor for Tailwind that allows special characters in
-// class names.
-// https://github.com/FullHuman/purgecss#extractor
-class TailwindExtractor {
-  static extract(content) {
-    return content.match(/[A-z0-9-:\/]+/g) || [];
-  }
-}
-
 module.exports = {
   runtimeCompiler: true,
   publicPath: `${config.protocol}://${config.host}:${config.port}/`,
@@ -67,13 +58,7 @@ module.exports = {
         ]),
         whitelist: whitelister(config.purgecssWhitelist),
         whitelistPatterns: config.purgecssWhitelistPatterns,
-        extractors: [
-          {
-            extractor: TailwindExtractor,
-            // Specify the file extensions to include when scanning for class names.
-            extensions: ["html", "js", "twig", "vue"],
-          },
-        ],
+        defaultExtractor: content => content.match(/[\w-/:]+(?<!:)/g) || [],
       }),
       new FileManagerPlugin({
         onEnd: {