update_settings() and the XYZ [Control] Processor axis still used
pre-rename names ('MediaPipe Face', 'DWPose', 'SegmentAnything') that
no longer exist as config keys after 8d4ebcd5e.
- update_settings(): update stale keys to 'MediaPipe Face (Legacy)',
'DWPose (Legacy)', 'SegmentAnything 1.0' -- the KeyError at
'MediaPipe Face' (line 182) was silently dropping all settings after
position 13 on every panel change
- DWPose (Legacy) config: add missing 'model' key so update_settings
can persist the Pose Model radio value without crashing
- processor.processors list: remove stale 'DWPose' entry (already
present as 'DWPose (Legacy)') that caused XYZ [Control] Processor
to offer an unloadable option
Fixes#4953
Co-Authored-By: Claude <noreply@anthropic.com>