Downgrade webpack because it creates a bundle with a wrong dependency on postcss

Author: elchininet

package.json

@@ -55,8 +55,8 @@
     "ts-loader": "^8.0.12",
     "tscpaths": "^0.0.9",
     "typescript": "^4.1.3",
-    "webpack": "^5.10.3",
-    "webpack-cli": "^4.2.0"
+    "webpack": "^4.44.2",
+    "webpack-cli": "^3.3.12"
   },
   "peerDependencies": {
     "postcss": "^8.0.0"