Add focus history and Alt-Tab window switching

crates/ferese-core/src/lib.rs

@@ -1,8 +1,10 @@
 pub mod desktop;
+mod focus;
 pub mod notifications;
 mod output;
 mod workspace;
 
+pub use focus::{FocusCycle, FocusHistory};
 pub use output::{OutputError, OutputGeometry, OutputId, OutputWorkspaceMap, WorkspaceSwitch};
 pub use workspace::{
     LayoutMode, WindowPlacement, Workspace, WorkspaceError, WorkspaceId, WorkspaceLayout, WorkspaceSet,