fix: correct preset name for IP-Adapter face workflow

Changed from "FACE" to "PLUS FACE (portraits)" to match the exact
preset name expected by IPAdapterUnifiedLoader.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

comfyui/workflows/image-to-image/ipadapter-face-i2i-production-v1.json

@@ -102,7 +102,7 @@
         "1": 78
       },
       "widgets_values": [
-        "FACE"
+        "PLUS FACE (portraits)"
       ],
       "title": "IP-Adapter Face Loader",
       "flags": {},