ci(lint): upgrade to eslint v9

Author: RyanClementsHax

.eslintignore

@@ -9,7 +9,8 @@
   "scss.validate": false,
   "editor.codeActionsOnSave": {
     "source.fixAll.markdownlint": "explicit",
-    "source.fixAll.stylelint": "explicit"
+    "source.fixAll.stylelint": "explicit",
+    "source.fixAll.eslint": "explicit"
   },
   "stylelint.validate": ["css", "scss", "postcss"]
 }

.eslintrc.js

@@ -113,7 +113,6 @@ async function startServerWithRetry({
   while (attemptNumber <= maxAttempts) {
     attemptNumber++
     if (attemptNumber > 1) {
-      // eslint-disable-next-line no-console
       console.log(
         `Retrying (attempt ${attemptNumber}) starting the server because: ${failedReason}`
       )

.vscode/settings.json

@@ -0,0 +1,35 @@
+import eslint from '@eslint/js'
+import vitest from 'eslint-plugin-vitest'
+import tseslint from 'typescript-eslint'
+
+export default tseslint.config(
+  {
+    ignores: ['lib', 'examples', 'e2e', 'coverage']
+  },
+  eslint.configs.recommended,
+  ...tseslint.configs.recommended,
+  {
+    files: ['src/**/*.{test,spec}.?(c|m)[jt]s?(x)'],
+    ...vitest.configs.recommended
+  },
+  {
+    rules: {
+      quotes: ['warn', 'single'],
+      '@typescript-eslint/no-unused-vars': [
+        'warn',
+        { varsIgnorePattern: '^_', ignoreRestSiblings: true }
+      ],
+      'no-unused-vars': 'off'
+    }
+  },
+  {
+    languageOptions: {
+      parserOptions: {
+        project: './tsconfig.json'
+      }
+    },
+    rules: {
+      '@typescript-eslint/no-floating-promises': ['error']
+    }
+  }
+)