Modify the WifiSliceCode to follow the pattern for
Slices that do not match existing UI components.
Test: robotests
Bug: 80263568
Change-Id: Id69e019608777282f4b64ff945e8c30c97aaf577
Create a handler for any slice that doesn't include anything
from a PreferenceController.
Test: robotests
Change-Id: If23947152d61877537d0cac6240e96b9ab977bce
Bug: 80263568