Include dist/ folder in repository for v4.0.0-rc3

- Add production build files to repository for easy access and CDN usage
- Remove dist/ from .gitignore to track built files
- Includes all 37 HTML pages, CSS/JS assets, and images
- Fresh build with latest fixes (smart paths, sidebar navigation, updated CDNs)

This allows users to:
- Access built files directly from GitHub
- Use GitHub as CDN (via jsdelivr.net/gh/...)
- Download ready-to-use files without building locally

Author: puikinsh

.gitignore

@@ -4,9 +4,6 @@
 # unwanted types
 **/env.d.ts
 
-# Build output
-dist/
-
 # System / Log files
 *.DS_Store
 *.log