feat: enhance SEO and structured data across multiple components; update site description and improve sitemap and RSS feed

src/consts.ts

@@ -3,7 +3,7 @@ import type { IconMap, SocialLink, Site } from '@/types'
 export const SITE: Site = {
   title: 'Cojocaru David',
   description:
-    "I'm a Junior Full Stack Developer with a passion for creating web applications. I have experience in both front-end and back-end development, and I'm always eager to learn new technologies and improve my skills. I enjoy collaborating with teams and contributing to projects that make a difference.",
+    "Junior Full Stack Developer specializing in modern web technologies. Expert in React, Node.js, TypeScript, and cloud development. Read my latest tech tutorials, project insights, and programming tips on web development, DevOps, and software engineering best practices.",
   href: 'https://cojocarudavid.me',
   author: 'Cojocaru David',
   locale: 'en-US',