Improve the AudioStreamSample class documentation
Improve the AudioStreamSample class documentation

This closes #37915.

(cherry picked from commit 52786b54ef5e7b86286a5d3cefe531a0efa7400e)

ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot