Show slideshow button for folders with media anywhere in hierarchy

- slideshow_view now uses all_media_entries for non-root dirs so the
  slideshow traverses sub-albums instead of only direct files
- album.erb condition simplified: show launcher when albums OR media
  entries exist (previously hidden for folders with only sub-albums)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

1 files changed, 1 insertions, 3 deletions

diff --git a/app.rb b/app.rb
index 1fc5f69..cf371c8 100644
--- a/app.rb
+++ b/app.rb
@@ -342,9 +342,7 @@ def slideshow_view(rel)
     top_dirs = params[:dirs]&.split(',')&.map(&:strip)&.reject(&:empty?)
     all_media_entries(top_dirs: top_dirs&.any? ? top_dirs : nil)
   else
-    album_files(dir, data)
-      .select { |e| %i[image video].include?(e[:type]) }
-      .map    { |e| e.merge(file_rel: "#{rel}/#{e[:name]}") }
+    all_media_entries(top_dirs: [rel])
   end
   erb :slideshow, layout: false
 end