feat(wm): add cross-monitor move behaviour config

This commit provides two new commands, to set and toggle the behaviour
(swap, insert) when moving window containers across monitor boundaries.
MoveBehaviour::Swap has been selected as the default as this seems to be
the default on bspwm.

resolve #145

komorebi-core/src/lib.rs

@@ -57,6 +57,8 @@ pub enum SocketMessage {
     ToggleMaximize,
     ToggleWindowContainerBehaviour,
     WindowHidingBehaviour(HidingBehaviour),
+    ToggleCrossMonitorMoveBehaviour,
+    CrossMonitorMoveBehaviour(MoveBehaviour),
     UnmanagedWindowOperationBehaviour(OperationBehaviour),
     // Current Workspace Commands
     ManageFocusedWindow,
@@ -161,6 +163,13 @@ pub enum WindowContainerBehaviour {
     Append,
 }
 
+#[derive(Clone, Copy, Debug, Serialize, Deserialize, Display, EnumString, ArgEnum, JsonSchema)]
+#[strum(serialize_all = "snake_case")]
+pub enum MoveBehaviour {
+    Swap,
+    Insert,
+}
+
 #[derive(Clone, Debug, Serialize, Deserialize, Display, EnumString, ArgEnum, JsonSchema)]
 #[strum(serialize_all = "snake_case")]
 pub enum HidingBehaviour {