[Bug]: VTFs don't generate thumbnails

[sheepy676]

Checklist

• I am using an up-to-date version.
• I have read the documentation.
• I have searched existing issues.

TagStudio Version

Alpha v9.5.2

Operating System & Version

Windows 11 Version: 24H2 build: 26100.4351

Description

Even though VTF files are properly supported in code, they don't generate thumbnails. My best guess for this problem is the vtf2img library which is unmaintained and has poor support for VTF files. A possible alternative is srctools which has greater support for VTF files compared to vtf2img.

Expected Behavior

VTF files should generate thumbnails

Steps to Reproduce

1. Create a tag library with VTF files in it (VTFs can be gotten from any Valve game or from srctools test VTFs)
2. Notice that VTF files don't have thumbnails

Logs

No response