cycle: update config to <osd output="all|cursor|focused">

cycle: update config to <osd output="all|cursor|focused">

I think `<windowSwitcher><osd output="keyboard">` is a bit unclear and
hard to interpret as "show OSD in the output with keyboard focus". Also,
we use "cursor" instead of "pointer" in other configurations like
`<placement policy="cursor">` and `<action name="ShowMenu" atCursor="">`.

So let's replace `output="all|pointer|keyboard"` with
`output="all|cursor|focused"`. In documentation, I reordered them to
`output="all|focused|cursor"` as "focused" feels like a bit more
sophisticated and general policy.