fix: prevent MultiSelect out of bounds crash with empty options

[pradeep0153]

Guards selectNext() and selectPrev() methods against iterating over an empty _options array, preventing a TypeError crash when attempting to access indices out of bounds. Resolves #1608.

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Reviewing files that changed from the base of the PR and between 550e9c6 and ace6d5e.

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• packages/ui/src/MultiSelect.ts

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[github-actions]

Hi @pradeep0153 👋

⭐ Star this repo before your PR merges.

Why? GSSoC 2026 contributors who star get priority review and points credit. After you star, push any commit (or re-run this check). The needs-star label lifts automatically.

Thanks for your contribution to TermUI.