Pose Library: Tweak to the add-on description

The asset browser is now regarded as a mere UI, but there is also the
asset shelf now. All this is built on the asset system, so this is the
better term to use here.

Pull Request: https://projects.blender.org/blender/blender-addons/pulls/104889

Author: julianeisel

pose_library/__init__.py

@@ -8,7 +8,7 @@
 
 bl_info = {
     "name": "Pose Library",
-    "description": "Pose Library based on the Asset Browser.",
+    "description": "Pose Library based on the asset system.",
     "author": "Sybren A. Stüvel, Julian Eisel",
     "version": (2, 0),
     "blender": (3, 0, 0),