refactor: simplify personal info and remove unused components

- Replace translation-based personal info with direct values
- Remove unused HeroSection, AboutSection, and ProjectsSection components
- Clean up i18n translations to only keep essential navigation items

src/components/Footer.tsx

@@ -1,4 +1,5 @@
 import { useTranslations, type Lang } from "@/i18n/utils";
+import { personalInfo } from "@/lib/data";
 import { motion } from "framer-motion";
 
 interface FooterProps {
@@ -21,7 +22,7 @@ export default function Footer({ lang }: FooterProps) {
             className="text-sm text-muted-foreground text-center md:text-left"
             whileHover={{ scale: 1.01 }}
           >
-            © {new Date().getFullYear()} {t('personal.name')}. {t('footer.rights')} ✨
+            © {new Date().getFullYear()} { personalInfo.name }. {t('footer.rights')} ✨
           </motion.p>
           <motion.p
             className="text-sm text-muted-foreground mt-2 md:mt-0 text-center md:text-left"