`extensions` not being applied to Typescript

[joao-offerfit]

I am integrating XO to a Vue Project and I'm having a hard time trying to apply ts rules under .vue files.

Inside XO, If I update this constant:

const TYPESCRIPT_EXTENSION = [
	'ts',
	'tsx',
	'mts',
	'cts',
];

to that:

const TYPESCRIPT_EXTENSION = [
	'ts',
	'tsx',
	'mts',
	'cts',
	'vue',
];

Then the rules start to get applied to .vue files, which use Typescript. It seems like extensions aren't taken into account when it comes to applying ts rules (doesn't fall under the condition of isTypescript which only takes into account TYPESCRIPT_EXTENSION), my expectation was to be able to include .vue files as ts files somehow.

Any ideas on how to solve this issue? This is my current configuration:

"xo": {
    "prettier": true,
    "parser": "vue-eslint-parser",
    "parserOptions": {
      "parser": "@typescript-eslint/parser",
      "sourceType": "module"
    },
    "plugins": [
      "sonarjs",
      "vue"
    ],
    "extends": [
      "plugin:sonarjs/recommended-legacy"
    ],
    "extensions": [
      "vue"
    ],
    "envs": [
      "browser"
    ],
    "semicolon": false,
    "rules": {
      "unicorn/filename-case": [
        "error",
        {
          "case": "camelCase",
          "ignore": [
            "\\.vue$"
          ]
        }
      ],
      "unicorn/prevent-abbreviations": [
        "error",
        {
          "replacements": {
            "props": false
          }
        }
      ]
    "overrides": [
      {
        "files": "level3/**/*.vue",
        "extends": [
          "plugin:vue/vue3-recommended",
          "@vue/eslint-config-typescript/recommended"
        ]
      }
    ]
  }