REFACTOR(app): remove duplicated lighthouse

- Remove duplicate Lighthouse config
- Clean up configuration

deploy/k8s/overlays/prod/kustomization.yaml

@@ -13,7 +13,7 @@ commonLabels:
 # 이미지 태그 설정
 images:
   - name: ghcr.io/mayne0213/portfolio
-    newTag: 
+    newTag: main-sha-d3388f0
 
 patchesStrategicMerge:
   - deployment-patch.yaml

services/nextjs/components/landing/skills.tsx

@@ -77,7 +77,7 @@ export default function Skills() {
             icon={Globe}
             title="Performance & Digital Presence"
             description="Performance Testing, Digital Presence, SEO, Accessibility, and more."
-            skills={['Lighthouse', 'Google Lighthouse', 'Google Search Console', 'Google Analytics', 'Google Tag Manager']}
+            skills={['Lighthouse', 'Google Search Console', 'Google Analytics', 'Google Tag Manager']}
           />
           <SkillCard
             icon={Router}