feat: Update author social links and add new platforms

- Refactored author and author box templates to use a unified social_url helper for Twitter and Facebook.
- Added support for additional social media platforms: LinkedIn, Threads, Bluesky, Mastodon, TikTok, YouTube, and Instagram.
- Updated Spanish translations for "Newer Posts" and "Older Posts" along with new phrases for full post reading and navigation.
- Increased the tag retrieval limit in the tags page to 100 for better performance.
- Updated package version to 1.3.0 and corrected demo URL.
- Enhanced posts list with translation support for navigation links and full post reading.

Author: ngeorger

.gitignore

@@ -31,3 +31,5 @@ old/
 **.local.**
 !assets/js/lib/**
 .cursorignore
+.env
+docker-compose.yml