fix(control): update stale processor names after rename

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>

modules/control/processor.py

@@ -17,7 +17,6 @@ processors = [
     'None',
     # pose
     'OpenPose',
-    'DWPose',
     'RTMW',
     'RTMO',
     'ViTPose',