Dynamically import ChatDetail, NewChatForm, and ProductSelector components with skeleton loading states for improved performance. Refine product selection logic in promotion forms to show blacklist selector only for 'all' mode and clarify labels and descriptions for better user understanding.
Introduces product selection and exclusion controls to both new and edit promotion forms, allowing promotions to target all, specific, or all-but-specific products. Adds a reusable ProductSelector component, updates promotion types to support new fields, and adjusts cookie max-age for authentication. Also adds two new business quotes.
