Remove outdated branding and update project descriptions

Removes all instances of "Vibe-Coding" and "Vibe-Coder" from contact, hero, and projects components, updating descriptions to reflect current project focus on KI-development.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 6f3329ae-2dcc-46cc-bf2e-f58b7a5fa805
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Event-Id: 7135d765-a979-401b-89f0-355a26efbd11
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/e678fe28-87ab-4437-945b-7a15e872a292/6f3329ae-2dcc-46cc-bf2e-f58b7a5fa805/JSK21aO
Replit-Helium-Checkpoint-Created: true

artifacts/joachim-portfolio/src/components/projects.tsx

@@ -9,7 +9,7 @@ const projects = [
     desc: "Sichere Upload-Plattform mit AES-256-GCM-Verschlüsselung, JWT-Auth, Passwort-Reset per E-Mail, Rate Limiting und Docker-Deployment.",
     tags: ["AES-256-GCM", "JWT", "Docker", "Security"],
     url: "https://safedocsportal.com",
-    type: "Vibe-Coding Projekt",
+    type: "KI-Entwicklungsprojekt",
   },
   {
     icon: Mail,
@@ -18,7 +18,7 @@ const projects = [
     desc: "Newsletter & E-Mail-Marketing SaaS mit Double-Opt-In, DSGVO-Konformität, SPF/DKIM/DMARC, Zahlungsmodellen und Onboarding-Prozessen.",
     tags: ["SaaS", "DSGVO", "SMTP", "Newsletter"],
     url: "https://zensend.email",
-    type: "Vibe-Coding Projekt",
+    type: "KI-Entwicklungsprojekt",
   },
   {
     icon: Zap,