feat(cli): add focus-monitor-at-cursor cmd

This commit adds a new komorebic command, focus-monitor-at-cursor, which
can optionally be chained with the focus-workspace command in
keybindings to reproduce the previous default behaviour of auto-focusing
whichever monitor the cursor was on before attempting to change the
focused workspace.

komorebi/src/core/mod.rs

@@ -119,6 +119,7 @@ pub enum SocketMessage {
     CycleFocusMonitor(CycleDirection),
     CycleFocusWorkspace(CycleDirection),
     FocusMonitorNumber(usize),
+    FocusMonitorAtCursor,
     FocusLastWorkspace,
     CloseWorkspace,
     FocusWorkspaceNumber(usize),

komorebi/src/process_command.rs

@@ -735,6 +735,11 @@ impl WindowManager {
                 self.focus_monitor(monitor_idx)?;
                 self.update_focused_workspace(self.mouse_follows_focus, true)?;
             }
+            SocketMessage::FocusMonitorAtCursor => {
+                if let Some(monitor_idx) = self.monitor_idx_from_current_pos() {
+                    self.focus_monitor(monitor_idx)?;
+                }
+            }
             SocketMessage::Retile => {
                 border_manager::destroy_all_borders()?;
                 self.retile_all(false)?