Making PS container tappable when locked.

Currently only the lock button in contianer
is tappable when PS is locked.
This change makes both the container and
button tappable.
In unlock state, the container is not tappable.

Bug: 313859437
Flag: ACONFIG com.android.launcher3.Flags.enable_private_space TRUNKFOOD
Test: Launcher3 test.
Change-Id: I1ae267d50a999e723932136dffa3ae8243d439c0