Move all button-related class utilities and types from formPrimitives to a new
ui/buttonPrimitives module. Update all component imports to reference the new
location, ensuring consistent button styling and easier future maintenance.
Remove redundant button code from formPrimitives and re-export as needed for
admin UI compatibility. Add public.css for landing and privacy layout styles.
Update multiple UI panels to use skeleton components instead of loading text or spinners.
Standardize loading states in AudiobookExportModal, AdminFeaturesPanel, AdminProvidersPanel,
DocumentSelectionModal, and SegmentsSidebar for improved visual consistency and user feedback.
Move shared button, input, and listbox styles to a new formPrimitives module
used across admin panels, settings, and document settings. Update admin and
settings components to import these styles from the new location. Refactor
DocumentSelectionModal to use a direct files prop with loading and error
states, removing fetcher logic and internal fetch state. Add a custom hook
for library document queries. Clean up legacy admin/ui primitives and
standardize segmented controls and section layouts.
