feat(wm): add send-to-workspace/monitor cmds

This commit adds two commands to allow the user to send the currently
focused container to a different workspace or monitor as a background
operation, without following the moved container to the destination
workspace or monitor.

resolve #20

komorebi-core/src/lib.rs

@@ -32,6 +32,8 @@ pub enum SocketMessage {
     CycleStack(CycleDirection),
     MoveContainerToMonitorNumber(usize),
     MoveContainerToWorkspaceNumber(usize),
+    SendContainerToMonitorNumber(usize),
+    SendContainerToWorkspaceNumber(usize),
     Promote,
     ToggleFloat,
     ToggleMonocle,