add fish config

fish/add-on.fish

@@ -49,5 +49,10 @@ function dotu
     cd $current_dir
 end
 
+## 修复光标消失
+function restore_cursor --on-event fish_postexec
+    tput cnorm
+end
+
 abbr -a port 'sudo ss -tulnp | grep'
 abbr -a process 'ps aux | grep'