Add new translation keys for billing plan details in English, Spanish, and Portuguese to support localized text for credit plan, custom plan, seat purchase, and contact sales. Also, update the `current-plan-details.tsx` component to use these translations for better internationalization support.
- Added a new SQL field to indicate pending invitations for team members, improving role management logic.
- Updated the settings drawer component to display tooltips for roles that cannot be changed, enhancing user experience.
- Introduced new localization entries for pending invitations and role change restrictions in English, Spanish, and Portuguese, ensuring consistency across languages.
