feat(layout, components): update metadata and hero section for improved branding and SEO

- Revised the metadata in the layout component to reflect a more concise title and description, emphasizing software engineering expertise and high-performance applications.
- Updated keywords to include relevant technologies and skills, enhancing search engine optimization.
- Modified the hero section to replace "Full-Stack Engineer" with "Engenheiro de Software" and refined the description to highlight specialization in scalable architectures and critical systems.
- Adjusted alt text for the Open Graph image to align with the new branding.

app/opengraph-image.tsx

@@ -1,7 +1,7 @@
 import { ImageResponse } from 'next/og'
 
 export const runtime = 'edge'
-export const alt = 'Evandro Fonseca Junior - Full Stack Developer'
+export const alt = 'Evandro Fonseca Junior - Engenheiro de Software'
 export const size = {
   width: 1200,
   height: 630,
@@ -42,7 +42,7 @@ export default async function Image() {
             textAlign: 'center',
           }}
         >
-          Desenvolvedor Full-Stack
+          Engenheiro de Software
         </div>
       </div>
     ),