Adding this flag check since we are putting all the implementations of Private Space features behind this flag.
Bug: 326060689
Test: Run presubmits and verify that nothing breaks
Change-Id: I2c0e9a1afc3787232425f79d06d4aeba001283ec
This change includes implementaion for below:
1. Add a preference inside private space settings page with a toggle switch to control hide/unhide
private space entry in All Apps
2. Store the preference value in settingsprovider for persistence.
Bug: 302682054
Test: Manual
Change-Id: Ia1a56fc2c43550e23c00a61a5ce4742e42effcbe