Add SEO elements

[devPalta]

we should add:

• [x] page title

• [x] page description

• [x] page favicon

• [x] sections aria-label

• [x] buttons aria-label

• https://nextjs.org/docs/app/building-your-application/optimizing/metadata

• https://web.dev/learn/accessibility/aria-html?continue=https%3A%2F%2Fweb.dev%2Flearn%2Faccessibility%2F%23article-https%3A%2F%2Fweb.dev%2Flearn%2Faccessibility%2Faria-html

• https://bejamas.io/hub/guides/next-js-and-accessibility

[Roxha-V]

work in progresss