Directory listing (Publish page)

[cryptoquick]

• [x] fs_crawler.rs
  • [x] Similar to https://github.com/ronin13/finde-rs with crossbeam
• [x] Rayon thumbnailing
  • [x] 256px by 256px
  • [x] Fills width while maintaining aspect ratio
• [x] Columnar view
  • [x] Columns are added in increments of 256px + 2px spacing
  • [x] Columns adjust after resize
• [ ] Multi-select
  • [ ] Contrast color border, 1px
  • [ ] Navigate with keyboard
    • [ ] Tab between columns
    • [ ] Up and down arrows
    • [ ] Space to select
    • [ ] Scroll by page with page up / page down
• [ ] Publish button
• [ ] Unpublish Button