Fix mistake in previous commit

While the behavior of this shortcut can be argued (it only works while
hovering the possibly invisible markers region), it was not my intention
to remove it entierly from the Graph and Sequencer Editor. Only wanted
to copy it.

release/scripts/presets/keyconfig/keymap_data/blender_default.py

@@ -1331,6 +1331,7 @@ def km_markers(params):
         ("marker.delete", {"type": 'DEL', "value": 'PRESS'}, None),
         ("marker.rename", {"type": 'M', "value": 'PRESS', "ctrl": True}, None),
         ("marker.move", {"type": 'G', "value": 'PRESS'}, None),
+        ("marker.camera_bind", {"type": 'B', "value": 'PRESS', "ctrl": True}, None),
     ])
 
     return keymap