SVGs imported as Vector Image don't show a static preview in the Project Browser

Steps to reproduce:

1. Import an SVG file
2. Make sure the file is imported as a UI Toolkit Vector Image
3. Look in the Project Browser

Actual results: A generic icon is displayed

Expected results: An SVG preview is exected

Reproducible with versions: 6000.6 6000.5 6000.4 6000.3