feat: initialize frontend with Next.js, Tailwind CSS, and internationalization support

- Added package.json for project dependencies and scripts
- Configured PostCSS with Tailwind CSS
- Created global styles and theme context for dark mode support
- Implemented layout and routing for internationalization using next-intl
- Developed main components: Header, Footer, Hero, About, Skills, Projects, Contact
- Added language switcher and contact form with validation
- Created project card component to display project details
- Set up localization files for English and Portuguese
- Configured Tailwind CSS for styling and responsive design
- Added favicon and logo assets

frontend/eslint.config.mjs

@@ -0,0 +1,16 @@
+import { dirname } from "path";
+import { fileURLToPath } from "url";
+import { FlatCompat } from "@eslint/eslintrc";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+
+const compat = new FlatCompat({
+  baseDirectory: __dirname,
+});
+
+const eslintConfig = [
+  ...compat.extends("next/core-web-vitals", "next/typescript"),
+];
+
+export default eslintConfig;