docs(seed-docs): fix snackbar guideline image

[yoonk2]

Snackbar의 예시 이미지에서 말줄임표를 제거하고, 실제 구현체 렌더링과 동일하게 세 줄 이상 렌더링된 이미지로 교체해요.

[changeset-bot]

⚠️ No Changeset found

Latest commit: 8701d1a

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

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[github-actions]

Deploy Seed Docs Alpha Pages / Deploy Seed Docs (push) CI가 성공적으로 끝나면 해당 링크로 이동해서 preview를 확인해요 -> https://dash.cloudflare.com/aad5c82543cd1f267b89737d0f56405e/pages/view/seed-design

[stleamist]

👍🏻

[junghyeonsu]

👍