feat!: convert to eslint flat config, include typescript

[silvester-pari]

This PR introduces some new functionalities, mainly:

• new eslint flat config style
• eslint dependency updated to >9
• prettier dependency updated to >3
• typescript dependency
• recommended eslint config
• recommended typescript-eslint
• typescript-eslint parser

The config also includes a minimal set of rules, defined in index.js.

Try it out with the npm package @eox/eslint-config@2.0.0-alpha

[A-Behairi]

in a Vue project, typescript-eslint parser conflicts with eslint-plugin-vue resulting in not linting .vue files correctly.

reproduction:
repo: https://github.com/eodash/eodash

1. remove .eslintrc.cjs and .eslintignore
2. install the package npm i -D @eox/eslint-config@2.0.0-alpha
3. remove @vue/eslint-config-typescript dev dependency.
4. update the following packages and install:

• eslint to ^9.4.0
• eslint-plugin-cypress to ^3.3.0
• eslint-plugin-vue to ^9.26.0

5. add eslint.config.js

import pluginVue from "eslint-plugin-vue";
import pluginCypress from "eslint-plugin-cypress/flat";
import eox from "@eox/eslint-config";

export default [
  { ignores: ["public/", "dist/", ".eodash/"] },
  ...eox,
  pluginCypress.configs.recommended,
  ...pluginVue.configs["flat/essential"],
];

when commenting out the parser from the package it works as expected