fix: fix sentry reading undefined (#27584)

## **Description**

Fixes Sentry error.

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## **Related issues**

Fixes:
https://metamask.sentry.io/issues/5925202820/?environment=production&project=273505&query=is%3Aunresolved%20issue.priority%3A%5Bhigh%2C%20medium%5D%20release%3A%5B12.3.0%2C12.3.1%5D%20is%3Anew&referrer=issue-stream&sort=freq&statsPeriod=7d&stream_index=9

## **Manual testing steps**

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2.
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### **Before**

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### **After**

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## **Pre-merge author checklist**

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Docs](https://github.com/MetaMask/contributor-docs) and [MetaMask
Extension Coding
Standards](https://github.com/MetaMask/metamask-extension/blob/develop/.github/guidelines/CODING_GUIDELINES.md).
- [ ] I've completed the PR template to the best of my ability
- [ ] I’ve included tests if applicable
- [ ] I’ve documented my code using [JSDoc](https://jsdoc.app/) format
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Not required for external contributors.

## **Pre-merge reviewer checklist**

- [ ] I've manually tested the PR (e.g. pull and build branch, run the
app, test code being changed).
- [ ] I confirm that this PR addresses all acceptance criteria described
in the ticket it closes and includes the necessary testing evidence such
as recordings and or screenshots.

ui/components/app/assets/nfts/nfts-items/nfts-items.js

@@ -157,7 +157,7 @@ export default function NftsItems({
 
   const updateNftDropDownStateKey = (key, isExpanded) => {
     const newCurrentAccountState = {
-      ...nftsDropdownState[selectedAddress][chainId],
+      ...nftsDropdownState?.[selectedAddress]?.[chainId],
       [key]: !isExpanded,
     };