fix switch-windows-all hotkey

[dnk]

pass focus to window if it is on another workspace.

current behavior:

1. there are 2 windows on workspace A and window 2 is above window 1
2. switch to workspace B
3. use "switch-windows-all" keys to switch to window 1

actual result:
window 1 get "demands attention" mark.
focus passed to window 2.

with this changes:
focus passed to window 1. window 1 is raised above all normal windows.

there is still problem with stealing focus by "always on top" windows. it can fixed separately.

[dnk]

known problem:
scenario:
there are 2+ monitors
workspace 1:

• application A on monitor 1
• application B (Atom text editor) on monitor 2
  active workspace 2
  switch to application A using "switch-windows-all" hotkey

actual result:
application B (Atom text editor) on monitor 2 displays invalid image.

the same problem appeared by just switching workspaces.

may be there is bug in Atom text editor.