workspace: use eslint@9

packages/ui-default/.eslintignore

@@ -1,4 +0,0 @@
-node_modules
-backendlib
-build
-public

packages/ui-default/.eslintrc.js

@@ -1,79 +0,0 @@
-/* eslint-disable @typescript-eslint/naming-convention */
-const path = require('path');
-
-module.exports = {
-  root: true,
-  parser: '@typescript-eslint/parser',
-  env: {
-    browser: true,
-    es6: true,
-    jquery: true,
-    commonjs: true,
-  },
-  extends: [
-    '@hydrooj/eslint-config',
-  ],
-  parserOptions: {
-    sourceType: 'module',
-    ecmaVersion: 2020,
-    ecmaFeatures: {
-      impliedStrict: true,
-      experimentalObjectRestSpread: true,
-      jsx: true,
-      defaultParams: true,
-      legacyDecorators: true,
-      allowImportExportEverywhere: true,
-    },
-  },
-  settings: {
-    'import/resolver': {
-      webpack: {
-        config: {
-          resolve: {
-            extensions: ['.js', '.jsx', '.ts', '.tsx'],
-            alias: {
-              vj: path.resolve(__dirname),
-            },
-          },
-        },
-      },
-    },
-  },
-  globals: {
-    __webpack_public_path__: true,
-    __webpack_require__: true,
-    UiContext: true,
-    UserContext: true,
-    externalModules: true,
-    LOCALES: true,
-    LANGS: true,
-    window: true,
-    JQuery: true,
-  },
-  rules: {
-    // FIXME A bug with eslint-parser
-    // 'template-curly-spacing': 'off',
-
-    '@stylistic/indent': [
-      'warn',
-      2,
-      { SwitchCase: 1 },
-    ],
-    'github/array-foreach': 'off',
-    'function-paren-newline': 'off',
-    'no-mixed-operators': 'off',
-    'no-await-in-loop': 'off',
-    'no-lonely-if': 'off',
-    'no-script-url': 'off',
-
-    'simple-import-sort/imports': [
-      'warn',
-      {
-        groups: [
-          ['^\\u0000'],
-          ['^(?!vj)(@?\\w.+)', '^vj\\/', '^', '^\\.'],
-        ],
-      },
-    ],
-  },
-};