Add WidgetEmptyState component for widgets that need a loading fallback.
Disable refetch-on-mount/focus/reconnect and retry for integration widgets
so cached data is preserved. Ensure hooks are never called conditionally.
Non-blocking data fetching for all 38 widget components. Widgets now
render immediately and show data when available, with loading state
delegated to the global refresh indicator in the board header.
Thomas
KyleandMeier Lukas