添加 wl-clip-persist 启动项，解决 mark-shot 剪贴板数据随进程退出的问题

config.kdl

@@ -271,6 +271,9 @@ layout {
 // Use dms instead of waybar
 // spawn-at-startup "waybar"
 
+// Keep clipboard data alive after the source application exits (e.g. mark-shot).
+spawn-at-startup "wl-clip-persist" "--clipboard" "regular"
+
 // To run a shell command (with variables, pipes, etc.), use spawn-sh-at-startup:
 // spawn-sh-at-startup "qs -c ~/source/qs/MyAwesomeShell"