[BUG] 테마 더보기뷰 CollectionView 로 변경

[comeheredart]

🐞 버그 설명

원래 TableView였던 테마 더보기 뷰를 CollectionView 로 변경 도전 드릉드릉

📝 todo

• TV -> CV 로 변경

필요시 참고해주세요🛠

**To Reproduce** Steps to reproduce the behavior: 1. Go to '...' 2. Click on '....' 3. Scroll down to '....' 4. See error

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Smartphone (please complete the following information):

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• OS: [e.g. iOS8.1]
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