fix: respond window floating change

Sway doesn't create any events when dragging floating windows across
workspaces, but this will at least update the tree when window is set to
tiling again.

src/lib.rs

@@ -356,7 +356,7 @@ pub fn handle_window_event(
         println!("{} Change: {:?}, Container: {:?}", "[WINDOW EVENT]".yellow(), e.change, e.container);
     }
     match e.change {
-        WindowChange::New | WindowChange::Close | WindowChange::Move | WindowChange::Title => {
+        WindowChange::New | WindowChange::Close | WindowChange::Move | WindowChange::Title | WindowChange::Floating => {
             update_tree(conn, config, res, false)
                 .map_err(|e| AppError::Event(format!("Tree update failed: {}", e)))?;
         }
@@ -377,6 +377,7 @@ pub fn handle_ws_event(
         println!("{} Change: {:?}, Current: {:?}, Old: {:?}",
            "[WORKSPACE EVENT]".green(), e.change, e.current, e.old);
     }
+
     match e.change {
         WorkspaceChange::Empty | WorkspaceChange::Focus => {
             update_tree(conn, config, res, e.change == WorkspaceChange::Focus)