fix: drop vue-style-loader because it does not support latest css-loader

Ref: vuejs/vue-style-loader#46

Author: gera2ld

packages/plaid-webpack-vue/util/index.js

@@ -1,6 +1,5 @@
 const { defaultOptions } = require('@gera2ld/plaid/util');
 
-defaultOptions.styleOptions.fallback = require.resolve('vue-style-loader');
 defaultOptions.vueOptions = {
   compilerOptions: {
     whitespace: 'condense',