Don't let settings button clickable during animation.

Otherwise the user will open settings instead of unlocking the container like normal.

bug: 349115995
Test:
before: https://drive.google.com/file/d/1jmd9Pxp6d0aGSC5Sp7efrlY6JLCPvKLR/view?usp=sharing
after: https://drive.google.com/file/d/1xyKPd_hT9ut10r5B1PHxLO9gE3zh9vxK/view?usp=sharing
Flag: com.android.launcher3.enable_private_space
Change-Id: Icefaf7de72678ccf0b976039f4a3ee88c6712167