chore(ui): update whatsnew

Author: psychedelicious

invokeai/frontend/web/public/locales/en.json

@@ -2333,7 +2333,7 @@
         "whatsNewInInvoke": "What's New in Invoke",
         "items": [
             "Workflows: New and improved Workflow Library.",
-            "FLUX: Support for FLUX Redux in Workflows and Canvas."
+            "FLUX: Support for FLUX Redux & FLUX Fill in Workflows and Canvas."
         ],
         "readReleaseNotes": "Read Release Notes",
         "watchRecentReleaseVideos": "Watch Recent Release Videos",