chore: optimize build

- [x] Remove clean scripts
- [x] Update source maps

package.json

@@ -4,10 +4,8 @@
   "description": "Crypt-Keeper Extension, zero knowledge identity management and proof generation tool",
   "main": "index.js",
   "scripts": {
-    "build": "NODE_ENV=production webpack --config webpack.prod.js && npm run clean-background-prod",
-    "dev": "NODE_ENV=development webpack --config webpack.dev.js && npm run clean-background-dev",
-    "clean-background-dev": "./scripts/clean-dev.sh",
-    "clean-background-prod": "./scripts/clean-prod.sh",
+    "build": "NODE_ENV=production webpack --config webpack.prod.js",
+    "dev": "NODE_ENV=development webpack --config webpack.dev.js",
     "merkle": "ts-node src/server/mock-merkle-proof.ts",
     "test": "jest",
     "test:coverage": "jest --coverage",

webpack.common.js

@@ -47,17 +47,6 @@ module.exports = {
         test: /\.tsx?$/,
         use: "ts-loader",
       },
-      // TODO: string-replace-loader has issues with new webpack version
-      // {
-      //     test: /ejs\.js$/,
-      //     loader: 'string-replace-loader',
-      //     options: {
-      //         search: "(new Function('return this;'))().Promise",
-      //         replace: "(function() { return this ? this : typeof self !== 'undefined' ? self : undefined})() || Function('return this')()",
-      //         flags: 'g',
-      //         strict: true
-      //     }
-      // },
       {
         exclude: /node_modules/,
         test: /\.scss$/,

webpack.dev.js

@@ -3,5 +3,5 @@ const common = require("./webpack.common.js");
 
 module.exports = merge(common, {
   mode: "development",
-  devtool: "inline-source-map",
+  devtool: "cheap-module-source-map",
 });