Add Pagefind search functionality and fix missing images

- Installed Pagefind static search indexing
- Created search page with custom dark theme styling
- Added search to main navigation menu
- Updated deploy script to include Pagefind indexing
- Fixed missing images in birthday and chick legacy pages
- Copied all missing legacy images from archive

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

deploy

@@ -3,6 +3,6 @@ USER=admin
 HOST=social
 DIR=../../var/www/blog/www   # the directory where your web site files should go
 
-hugo && rsync -avz --no-t --no-p --delete public/ ${HOST}:~/${DIR} # this will delete everything on the server that's not in the local public folder
+hugo && pagefind --site public && rsync -avz --no-t --no-p --delete public/ ${HOST}:~/${DIR} # this will delete everything on the server that's not in the local public folder
 
 exit 0