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/types.ts

@@ -28,6 +28,7 @@ export interface Skill {
 
 export interface SkillCategory {
   category: string;
+  icon: string;
   skills: Skill[];
 }