Implement a feature enabling users or administrators to upload a list of email addresses to grant access to the platform, or to allow access for all email addresses from a specified domain. This system will streamline the invitation process for large groups or organizations, facilitating easier onboarding and management. Features will include options to upload a CSV file of email addresses, input a domain to allow access (e.g., @company.com), and manage the list of invited or allowed emails through an admin panel.