remove hard-source-webpack-plugin

It is not compatible with webpack 5. mzgoddard/hard-source-webpack-plugin#546

package.json

@@ -107,7 +107,6 @@
     "express": "^4.17.1",
     "file-saver": "^2.0.5",
     "glob": "^7.1.6",
-    "hard-source-webpack-plugin": "^0.13.1",
     "http-proxy-middleware": "^1.1.2",
     "jest": "^26.6.3",
     "jest-canvas-mock": "^2.3.1",

quasar.conf.js

@@ -12,7 +12,6 @@ const { resolve } = require('path')
 const fs = require('fs')
 const StyleLintPlugin = require('stylelint-webpack-plugin')
 const PreloadWebpackPlugin = require('preload-webpack-plugin')
-const HardSourceWebpackPlugin = require('hard-source-webpack-plugin')
 const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin
 
 function getHttpsOptions () {
@@ -161,17 +160,6 @@ module.exports = configure(function (ctx) {
           }),
         )
 
-        if (dev) {
-          cfg.plugins.push(new HardSourceWebpackPlugin({
-            configHash: function (webpackConfig) {
-              return require('node-object-hash')({ sort: false }).hash([
-                webpackConfig,
-                appEnv,
-              ])
-            },
-          }))
-        }
-
         if (!dev) {
           cfg.plugins.push(new BundleAnalyzerPlugin({
             analyzerMode: ctx.mode.cordova ? 'disabled' : 'static',