Thumbnails in Places missing if video

[HMKnapp]

🐛 Bug Report

• 📁 I've Included a ZIP file containing my librephotos log files
• ❌ I have looked for similar issues (including closed ones)
• 🎬 (If applicable) I've provided pictures or links to videos that clearly demonstrate the issue

📝 Description of issue:

Missing thumbnails in Places because request is for .mp4 instead of .webp
proxy | 2024/05/17 21:24:05 [error] 29#29: *6815 open() "/protected_media/thumbnails_big/03c2e650f58ae866888fbe933a9443321.mp4" failed (2: No such file or directory)

A thumbnail with that name exists as .webp.

🔁 How can we reproduce it:

Probably: have a video in a distinct place. This would use the video thumbnail and it would create a request with the video's file extension instead of .webp

Please provide additional information:

• 💻 Operating system: librephotos-gpu Docker image
• ⚙ Architecture (x86 or ARM): x86_64
• 🔢 Librephotos version: 2024w05
• 📸 Librephotos installation method (Docker, Kubernetes, .deb, etc.): Docker
  • 🐋 If Docker or Kubernets, provide docker-compose image tag: librephotos-gpu:latest
• 📁 How is you picture library mounted (Local file system (Type), NFS, SMB, etc.): local
• ☁ If you are virtualizing librephotos, Virtualization platform (Proxmox, Xen, HyperV, etc.):