Revert "Settings: disable lockscreen settings appropriately"

This reverts commit 469c873b22f2f6eff1e7edc81933dc3f46a51a05.
Revert "Changed "Wake on plug" description..."

This reverts commit fcf981d9c36a31421199b05ac83199c97f5c3f81.
Revert "add Custom Lockscreen switch"

This reverts commit 76e5f3cca230bb50ccb164794c90b780d37d482a.