fix missing opts for plugin initialization

.config/nvim/lua/user/plugins/nvim_scrollbar.lua

@@ -1,5 +1,7 @@
 return {
 	"petertriho/nvim-scrollbar",
 	event = "VeryLazy",
-	config = true
+	config = function (_, opts)
+		require("scrollbar").setup(opts)
+	end
 }