chore: Update all dependencies and add eslint-plugin-unicorn (#371)

Author: csandman

demo/eslint.config.js

@@ -1,25 +1,41 @@
+// @ts-check
 import js from "@eslint/js";
 import prettier from "eslint-config-prettier";
 import react from "eslint-plugin-react";
 import reactHooks from "eslint-plugin-react-hooks";
 import reactRefresh from "eslint-plugin-react-refresh";
+import unicorn from "eslint-plugin-unicorn";
+import { defineConfig, globalIgnores } from "eslint/config";
 import globals from "globals";
 import tseslint from "typescript-eslint";
 
-const eslintConfig = tseslint.config(
-  { ignores: ["dist"] },
+const eslintConfig = defineConfig(
+  globalIgnores(["dist"]),
   {
-    settings: { react: { version: "19" } },
-    extends: [js.configs.recommended, ...tseslint.configs.recommended],
+    settings: {
+      react: { version: "detect" },
+    },
+    extends: [
+      js.configs.recommended,
+      tseslint.configs.recommended,
+      unicorn.configs.recommended,
+      reactHooks.configs.flat.recommended,
+      reactRefresh.configs.vite,
+    ],
     files: ["**/*.{ts,tsx}"],
     languageOptions: {
       ecmaVersion: 2020,
       globals: globals.browser,
+      sourceType: "module",
+      parserOptions: {
+        project: ["./tsconfig.app.json", "./tsconfig.node.json"],
+        ecmaFeatures: {
+          jsx: true,
+        },
+      },
     },
     plugins: {
       react,
-      "react-hooks": reactHooks,
-      "react-refresh": reactRefresh,
     },
     rules: {
       ...react.configs.recommended.rules,
@@ -32,12 +48,14 @@ const eslintConfig = tseslint.config(
           disallowTypeAnnotations: true,
         },
       ],
+      "@typescript-eslint/no-deprecated": "warn",
       "react/prop-types": "off",
       "react-refresh/only-export-components": [
         "warn",
         { allowConstantExport: true },
       ],
-      "react/no-unescaped-entities": "off",
+      "unicorn/prevent-abbreviations": "off",
+      "unicorn/no-null": "off",
     },
   },
   prettier