initial beta release + minor improvements

initial beta release of author page:

• homepage of recently added articles (legacy list)
• author page
  • create, edit, and link articles to author page (for existing articles added by co-author or admin)
  • curate primary & secondary transparency article information, full-text links, and impact metrics, key figures, follow-up commentaries (for different article types, including replication articles and curation of replication details)
  • add/edit basic author information
• create new author page (admin only)
• invite/create new user (admin only)
• delete articles (admin only)
• basic help page

minor improvements:

• minor bug fixes
• minor aesthetic style tweaks & UX improvements (e.g., CTRL+S save keyboard shortcut within article editor modal)
• DOI sanitization