Add skill removal functionality and enhance UI components

- Integrated onRemoveSkill functionality in SkillEvaluation, SkillSelector, and SkillEvaluationCard components for better skill management.
- Updated UI to improve user experience when removing skills, including tooltip descriptions and styling adjustments.
- Added new skills to backend, devops, frontend, and mobile JSON files for comprehensive skill coverage.

lib/data-loader.ts

@@ -1,7 +1,16 @@
 import { SkillCategory, Team } from "./types";
 
 export async function loadSkillCategories(): Promise<SkillCategory[]> {
-  const categories = ["frontend", "backend", "devops", "mobile"];
+  const categories = [
+    "frontend",
+    "backend",
+    "devops",
+    "mobile",
+    "data",
+    "cloud",
+    "security",
+    "design",
+  ];
   const skillCategories: SkillCategory[] = [];
 
   for (const category of categories) {