Function PickerGallery 

pub(crate) fn PickerGallery(props: PickerGalleryProps) -> impl IntoView

The actual picker grid is shared; callers provide already loaded display rows.

Required Props

• items: impl Into<Signal<Vec<PickerAsset>>>
• selected: [RwSignal<Vec<AssetSelection>>]
• multi: bool
• loading: impl Into<Signal<bool>>
• uploading: impl Into<Signal<bool>>
• error: impl Into<Signal<Option<String>>>
• uploading_preview: impl Into<Signal<Option<String>>>
• on_pick: impl Into<Callback<Vec<AssetSelection>>>