Closes [2030](https://github.com/twentyhq/core-team-issues/issues/2030). Determines if a widget is the last visible widget in its parent tab. The hook: - Finds the tab containing the widget - Filters widgets based on visibility rules (respects conditionalDisplay and edit mode) - Returns true if the current widget is the last in the filtered list - Updated `WidgetCard`: Added isLastWidget prop to conditionally apply border-bottom for the side-column variant - Updated `WidgetRenderer`: Integrates the hook and passes isLastWidget to WidgetCard