feat(i18n): implement astro i18n integration and refactor locale handling

- Add i18n configuration to astro.config.mjs with default locale and routing
- Refactor language handling to use Astro.currentLocale instead of URL parsing
- Update tsconfig to include only necessary files for better type checking
- Improve LanguageSwitcher to handle routing based on astro i18n config
- Add new translation keys and update components to use dynamic titles
- Simplify MotionWrapper component by removing unused default animations

src/pages/index.astro

@@ -1,5 +1,4 @@
 ---
-import { getLangFromUrl } from "@/i18n/utils";
 import Layout from "@/layouts/Layout.astro";
 import GlassHeader from "@/components/GlassHeader";
 import HeroSection from "@/components/HeroSection";
@@ -7,11 +6,15 @@ import ExperienceSection from "@/components/ExperienceSection";
 import SkillsSection from "@/components/SkillsSection";
 import ProjectsSection from "@/components/ProjectsSection";
 import Footer from "@/components/Footer";
+import { useTranslations, type Lang } from "@/i18n/utils";
+import { defaultLang } from "@/i18n/ui";
 
-const lang = getLangFromUrl(Astro.url);
+const lang: Lang = defaultLang;
+const t = useTranslations(lang);
+const pageTitle = t('page.home.title'); 
 ---
 
-<Layout title="Home" lang={lang}>
+<Layout title={pageTitle}>
   <GlassHeader lang={lang} client:only="react" />
   <main class="min-h-screen">
     <HeroSection lang={lang} client:only="react" />