✨ Introduce feedback email notifications

Add a mailer to send notifications upon feedback submission and update the feedback form to include a header for better user experience. 🎉 Add 12-Week Instagram Marketing Plan Introduce a comprehensive marketing plan for Knipsmig, focusing on Instagram strategies, content creation, and engagement tactics tailored for a Danish full-stack developer with limited time. 💄 Enhance UI for photo collection section Update styles and layout for improved visual appeal and user engagement. ♻️ Refactor reviews query to filter completed reviews Update the reviews query to only include completed reviews for better data accuracy and relevance.