Better visible "swishy" lines that represent windows on another
workspace.
Deskbar_Window_Switch_Overlay are just the swishy lines.
Moved the windows of Deskbar_Window_Hidden and Deskbar_Window_Visible
to the right, so overlay lines can be simply "appended" in IOM.
Fixes #18727
Change-Id: I08eabd0f2e95a23921caf968ac73abf7758ae7ce
Reviewed-on: https://review.haiku-os.org/c/haiku/+/7280
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: waddlesplash <waddlesplash@gmail.com>