- Implemented `generateTableOfContents` method to create a structured table of contents from article content.
- Added `processHeaders` method to ensure headers have unique IDs for linking.
- Updated `generateHeadersIds` to apply ID generation to headers in article content.
- Modified `article_full` method to include table of contents in rendered articles.
- Enhanced `submenu_details` and `subpages` methods in Menu class to support language ID.
- Updated caching mechanisms to include language ID for subpages and menu details.
- Refactored various methods in Articles view class for improved readability and consistency.
- Added new sftp configuration file for deployment settings.
