Summary: chichi-pui adds dedicated AI generator landing pages

Why It Matters: The site is organizing content around specific AI tools like ChatGPT and Midjourney. This helps them show up in search results when people look for those specific generators.

What Changed:

• Added new navigation links for specific AI generators including Niji Journey, NovelAI, ChatGPT, Dalle, and Midjourney.
• Updated the "User Events" section to include a new "Hero vs Villain" contest.
• Removed several seasonal event links from the top menu, such as the Christmas 2025 event.
• Refreshed the "Recommended" and "Trending" image galleries with new user-generated content.