Browser crash when switching to NFT tabs

[srirambv]

Description:

Browser crash when switching to NFT tabs

Steps to Reproduce

1. Restore wallet on older build
2. Upgrade to 1.61 (23.11.30.17)
3. Unlock wallet and switch to NFT tab
4. Browser crashes

Actual result:

NFT.Crash.MP4

Expected result:

No crash

Reproduces how often: [Easily reproduced, Intermittent Issue]

Easy

Brave Version:

• Can you reproduce this issue with the most recent build from TestFlight? Yes
• Can you reproduce this issue with the previous version of the current build from TestFlight? NA
• Can you reproduce this issue with the current build from AppStore? NA

Device details:

iPhone 7+ (iOS 15.8)

Website problems only:

• did you check with Brave Shields down? NA
• did you check in Safari/Firefox (WkWebView-based browsers)? NA

Additional Information

cc: @nuo-xu @StephenHeaps