add visibility handling for the floating window

lua/test-samurai/init.lua

@@ -1,10 +1,10 @@
-local config = require("test-samurai.config")
 local core = require("test-samurai.core")
+local config = require("test-samurai.config")
 
 local M = {}
 
 function M.setup(opts)
-  config.setup(opts or {})
+  config.set(opts or {})
   core.setup()
 end
 
@@ -12,4 +12,8 @@ function M.test_nearest()
   core.run_nearest()
 end
 
+function M.show_output()
+  core.show_output()
+end
+
 return M