Enhance skill evaluation UI with category icons and URL state management

- Added category icons to the skill evaluation components for better visual representation.
- Implemented URL parameter handling in SkillEvaluation to maintain selected category state across navigation.
- Improved the HomePage layout with expandable skill categories and enhanced user interaction.
- Updated skill data files to include icon properties for each category.

lib/category-icons.ts

@@ -0,0 +1,18 @@
+import { 
+  Monitor, 
+  Server, 
+  Settings, 
+  Smartphone, 
+  LucideIcon 
+} from "lucide-react";
+
+const CATEGORY_ICON_MAP: Record<string, LucideIcon> = {
+  monitor: Monitor,
+  server: Server,
+  settings: Settings,
+  smartphone: Smartphone,
+};
+
+export function getCategoryIcon(iconName: string): LucideIcon {
+  return CATEGORY_ICON_MAP[iconName] || Settings; // Settings as fallback
+}