refactor: remove experience section and related data

Clean up unused experience section from UI and remove associated data

src/components/GlassHeader.tsx

@@ -30,7 +30,7 @@ export default function GlassHeader({ lang }: GlassHeaderProps) {
         {/* Desktop Navigation */}
         <nav className="hidden md:flex items-center space-x-6 text-sm font-medium">
           {[ 
-            { key: 'nav.experience', icon: '💼 ', sectionId: 'experience' },
+            // { key: 'nav.experience', icon: '💼 ', sectionId: 'experience' },
             { key: 'nav.skills', icon: '🛠️ ', sectionId: 'skills' },
             { key: 'nav.projects', icon: '🚀 ', sectionId: 'projects' },
           ].map(