Updated mediawiki/extensions
Project: mediawiki/extensions/Math  8e66e40780f1cbf3afce3bcbd1abdf7e34c0ada7

Improvements to the PNG fallback style.

- create a new <img> tag to avoid copying unwanted style from the SVG fallback.
- keep the legacy tex class for consistency with the PNG mode.

Bug: 71912
Change-Id: Ibe4683d2898b49fda190e2f1535cab1b952250b0