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.

components/evaluation/skill-evaluation-grid.tsx

@@ -5,12 +5,14 @@ interface SkillEvaluationGridProps {
   currentCategory: SkillCategory;
   currentEvaluation: CategoryEvaluation;
   onUpdateSkill: (category: string, skillId: string, level: SkillLevel) => void;
+  onRemoveSkill: (category: string, skillId: string) => void;
 }
 
 export function SkillEvaluationGrid({
   currentCategory,
   currentEvaluation,
   onUpdateSkill,
+  onRemoveSkill,
 }: SkillEvaluationGridProps) {
   const getSkillLevel = (skillId: string): SkillLevel => {
     const skillEval = currentEvaluation?.skills.find(
@@ -52,6 +54,9 @@ export function SkillEvaluationGrid({
               onUpdateSkill={(skillId, level) =>
                 onUpdateSkill(currentCategory.category, skillId, level)
               }
+              onRemoveSkill={(skillId) =>
+                onRemoveSkill(currentCategory.category, skillId)
+              }
             />
           );
         })}