Contract analyzer is easier to use!

- Automatically closes the current issue when navigating to the next one for a smoother user experience.

- Updated events and notifications icons with custom designs for better visual appeal.

- Improved the file upload section in the Contract Analyzer based on user feedback and design enhancements.

- Resolved a cosmetic issue where the file drop zone was wider than the screen.

- Added SEO and social graph tags to enhance the discoverability and sharing of the app on social media platforms.

- Fixed an issue where the list of uploaded contracts did not refresh when a filename changed.