Use debounce

Author: rpbaptist

lua/claudecode/selection.lua

@@ -93,9 +93,9 @@ function M.on_cursor_moved()
 end
 
 --- Handles mode change events.
--- Triggers an immediate update of the selection.
+-- Triggers a debounced update of the selection.
 function M.on_mode_changed()
-  M.update_selection()
+  M.debounce_update()
 end
 
 --- Handles text change events.