No icon on taskbar

### Windows Version

Microsoft Windows [Version 10.0.19045.7184]

### WSL Version

WSL version: 2.6.3.0

### Are you using WSL 1 or WSL 2?

- [x] WSL 2
- [ ] WSL 1

### Kernel Version

Kernel version: 6.6.87.2-1 WSLg version: 1.0.71 MSRDC version: 1.2.6353 Direct3D version: 1.611.1-81528511 DXCore version: 10.0.26100.1-240331-1435.ge-release Windows version: 10.0.19045.7184

### Distro Version

Ubuntu 24.04

### Other Software

WIndows taskbar

### Repro Steps

Open WSL

### Expected Behavior

There is a WSL logo (https://commons.wikimedia.org/wiki/File:Windows_Subsystem_for_Linux_logo.png) in the taskbar

### Actual Behavior

It looks like I have a photo open:

But this is in fact WSL

### Diagnostic Logs

_No response_

Start by reproducing the issue with WSL 2 on Windows 10 and compare the taskbar appearance with the expected WSL logo. Trace the component responsible for the WSL taskbar icon; done means opening WSL shows an identifiable WSL logo instead of the reported photo-like icon.

Written by the indexing model from the issue text.