Fix css purging during prod build

gulpfile.js

@@ -27,9 +27,8 @@ const postcssPurgecss = require("@fullhuman/postcss-purgecss")({
     "./source/**/*.mustache",
     "./source/**/*.json",
     "./source/**/*.js",
+    "./source/**/*.vue",
     "./public/**/*.html",
-    "./public/**/*.js",
-    "./public/**/*.vue",
   ],
   defaultExtractor: (content) => content.match(/[A-Za-z0-9-_:/]+/g) || [],
 });