fix(types): correct typing for contentIcons and controlPanelsIcons (#7339)

[vigneshshiv28]

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Closes #7339

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[boring-cyborg]

Caution

The Volto Team has suspended its review of new pull requests from first-time contributors until the release of Plone 7, which is preliminarily scheduled for the second quarter of 2026.
Read details.

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[mister-roboto]

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