[AC-3508] fix: update carousel index calculation

[bang9]

Changes

• Bugfix for carousel index calculation

ticket: AC-3508

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[github-actions]

Size Change: +19 B (0%)

Total Size: 618 kB

Filename	Size	Change
./dist/__bundle-2aa1a987-********.js	2.63 kB	-1 B (-0.04%)
./dist/__bundle-347d730c-********.js	4.01 kB	-1 B (-0.02%)
./dist/__bundle-95b1bd50-********.js	891 B	-1 B (-0.11%)
./dist/index-********.js	312 kB	+15 B (0%)
./dist/index.umd.js	291 kB	+7 B (0%)

ℹ️ View Unchanged

Filename	Size
./dist/index.es.js	171 B
./dist/style.css	7.95 kB

_{compressed-size-action}

[OnestarLee]

itemLength 나 itmeWidth 가 0일경우 의도하지 않은 동작이 발생할 가능성이 있을까요? @bang9

[bang9]

itemLength 나 itmeWidth 가 0일경우 의도하지 않은 동작이 발생할 가능성이 있을까요? @bang9

0 이면 아무것도 렌더링이 되지 않을거라서 동작할 컴포넌트가 없으므로, 괜찮을 것 같습니다!