feat!: ESLint 9 Fixes (#307)

* chore: update postinstall scripts
* chore(lint): eslint automated fixes
* feat!: drop standard, sonarjs to work with eslint9

- This config allows arrow functions.

BREAKING CHANGES:

- Switches to eslint-config-eslint from eslint-config-standard.
- Also drops eslint-plugins-sonarjs because it doesn't work well
  with eslint9, and wants eslint8 and related plugins.
- Switches from eslint-plugin-prettier to eslint-config-prettier.

packages/prettier-config/scripts/postinstall.cjs

@@ -1,9 +1,11 @@
 'use strict'
 
-const fs = require('fs')
-const path = require('path')
+/* eslint no-console: "off", n/no-process-exit: "off", no-undefined: "off" -- CLI app that gives users feedback */
+
+const fs = require('node:fs')
+const path = require('node:path')
 // noinspection NpmUsedModulesInstalled
-const process = require('process')
+const process = require('node:process')
 const checkConfig = require('@ivuorinen/config-checker')
 const foundConfig = checkConfig('prettier')