feat: display warning on flagged nfts

[begonaalvarezd]

Summary

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Close #8022

Changelog

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Testing

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• Desktop
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Instructions

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Checklist

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• I have commented my code, particularly in hard-to-understand areas
• I have added or modified tests that prove my changes work as intended
• I have verified that new and existing unit tests pass locally with my changes
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• I have made corresponding changes to the documentation

[evavirseda]

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