Image: Fix return type annotation for lightbox settings function #71073
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What?
Updates the
@returnannotation forblock_core_image_get_lightbox_settings()to accurately reflect that the function can returnnull.Why?
The function's DocBlock incorrectly documented the return type as only
array, but the actual implementation can returnnullwhen lightbox settings are not found.Originally opened on Trac as Core-63790