Revert "bump webpack-dev-server from 3.11.0 to 4.0.0-beta.3"

This reverts commit 663816cbc5.

Dashboard/package.json

@@ -49,14 +49,14 @@
     "@types/node": "^15.12.5",
     "@types/react": "^17.0.11",
     "@types/react-dom": "^17.0.8",
-    "electron-devtools-installer": "^3.2.0",
-    "electron-is-dev": "^2.0.0",
     "electron-squirrel-startup": "^1.0.0",
     "fs-extra": "^9.0.1",
     "react": "^16.13.1",
     "react-dom": "^16.13.1",
     "serialport": "^9.2.0",
-    "typescript": "^4.3.4"
+    "typescript": "^4.3.4",
+    "electron-devtools-installer": "^3.2.0",
+    "electron-is-dev": "^2.0.0"
   },
   "devDependencies": {
     "@babel/core": "^7.11.0",
@@ -69,8 +69,6 @@
     "concurrently": "^6.2.0",
     "cross-env": "^7.0.3",
     "css-loader": "^4.2.0",
-    "electron": "^13.1.4",
-    "electron-builder": "^22.11.7",
     "eslint": "^7.29.0",
     "eslint-config-airbnb": "^18.2.1",
     "eslint-plugin-import": "^2.23.4",
@@ -84,7 +82,9 @@
     "wait-on": "^6.0.0",
     "webpack": "^5.41.1",
     "webpack-cli": "^3.3.12",
-    "webpack-dev-server": "4.0.0-beta.3"
+    "webpack-dev-server": "^3.11.0",
+    "electron": "^13.1.4",
+    "electron-builder": "^22.11.7"
   },
   "presets": [
     "@babel/preset-env",