This commit introduces several enhancements for SEO and analytics.
- Updates the canonical site URL from `yphsalumni.com` to `yphsalumni.org`.
- Enriches the 'middle-highschool-tuition-class' page with detailed Open Graph (og) meta tags for better social sharing.
- Implements Umami event tracking for the 'Join Us' button on the homepage.
This commit adjusts the styling on the 'Middle/High School Tuition Class' page to enhance its appearance and readability,
particularly on mobile devices.
- Implemented responsive padding for the main page and content container.
- Justified the main text block for better readability.
- Centered the student name badges.
- Added configuration files for the `repomix` project analysis tool.
This commit introduces a new page dedicated to the 'Middle Highschool Tuition Class' of 1956 (中补班). The page displays a letter written in 2022, calling for a reunion of these special alumni. A navigation
link has been added to the 'About' section for easy access to this historical content.
