The "Thunder roars" sound is no longer affected by the master volume

This behavior was introduced in 25w21a.

The bug

With a master volume of 1% and a weather volume of 25%, a thunderstorm started in my world and was exceedingly loud. In the attached video, I compare minimum volume lightning to maximum volume lightning, as well as the volume of an explosion for reference.

Steps to reproduce

1. Join a world with commands enabled.

2. Navigate to the Music & Sound options and set the Master Volume slider to any value below 100% other than "OFF".

3. Start a thunder storm or summon a lightning bolt. For instance, the following command can be used:

   /summon minecraft:lightning_bolt

Observed behavior

Maximum volume thunder.

Expected behavior

The thunder volume would be reduced, as was the case in versions prior to 25w21a.