Remove postinstall package, use the native yarn lifecycle script inst…

…ead (#684)

* Remove postinstall package, use the native yarn lifecycle script instead

* Add @babel/plugin-proposal-logical-assignment-operators to the devDependencies, otherwise build fails. Not sure why it is not there already.

package.json

@@ -107,6 +107,7 @@
         "@babel/eslint-plugin": "^7.12.10",
         "@babel/plugin-proposal-class-properties": "^7.12.1",
         "@babel/plugin-proposal-export-default-from": "^7.12.1",
+        "@babel/plugin-proposal-logical-assignment-operators": "^7.20.7",
         "@babel/plugin-proposal-nullish-coalescing-operator": "^7.12.1",
         "@babel/plugin-proposal-numeric-separator": "^7.12.7",
         "@babel/plugin-proposal-object-rest-spread": "^7.12.1",
@@ -193,7 +194,6 @@
         "postcss-preset-env": "^6.7.0",
         "postcss-scss": "^4.0.4",
         "postcss-simple-vars": "^5.0.2",
-        "postinstall-postinstall": "^2.1.0",
         "prettier": "2.8.4",
         "raw-loader": "^4.0.2",
         "rimraf": "^3.0.2",