Relaunch previous activity after turning work profile on

When work profile is turned off, attempts to start work app activity is
intercepted and redirected to an information dialog, which gives the
option to turn work profile back on. When the user does turn it back on,
the original activity should be relaunched.

Bug: 27740167
Change-Id: I4c9d5bc949499bdb5d9f2394e13e670a48d43629