If the window is part of a stack, remove it then map it outside of the
stack, before calling `Shell::move_window.` Somewhat similar to the code
in `Shell::move_request`.
It would be more elegant if `move_window` handled this in some way, but
I can't think of a way to change the API there that would be better than
this.
(Perhaps some of the naming of methods could also be updated, given
"window" in functions like this means a `CosmicMapped`.)
Protocol support for moving workspaces would also be useful, but should
involve a new protocol object representing the stack.
Fixes https://github.com/pop-os/cosmic-workspaces-epoch/issues/41.
Iterating over `.windows()` for each workspace does not iterate over
`minimized_windows`, so `from_workspace` was not found. Simply changing
this to use `element_for_surface` and `space_for` (like `fullscreen` and
`unfullscreen`) fixes this.
Addresses https://github.com/pop-os/cosmic-workspaces-epoch/issues/89.
Though it does unminimize the window, which we may also want to change.
Previously, alt-tab wouldn't actually focus a window if it was on
another output, since the active output/workspace was unchanged.
We need to move the cursor if we activate a window on another output.
