feat(home): tirar o selo 'com demonstracao online' do hero

O lugar passa a ser da contagem de projetos desenvolvidos do GitHub.

Co-Authored-By: Claude Sonnet 5.5 <[email protected]>

app/page.tsx

@@ -21,10 +21,6 @@ export default async function Home() {
       heroStats={{
         years: yearsOfExperience(),
         repos: repos ?? undefined,
-        demos: projects.filter(
-          (project) =>
-            project.demoUrl && project.demoAvailability !== "unavailable",
-        ).length,
       }}
       projects={projects}
       experiences={portfolio.experiences}