Improve fluency when open handbook.
Improve fluency when open menu.
Define " stellahandbook" to the command get a handbook.

Restrict only use right-click to change the language on the menu.
Language setting moved to " language.yml" file.


Because of the config structure have little change, you might need to copy and paste the old config to another place, and then delete the old config in the plugin folder. Thus, the plugin can generate new config after server reload.

Please remember to save the old config if you have modified.

由于配置文件改动，请手动复制粘贴原配置文件到其他地方，然后删除插件文件夹中的旧配置文件，这样在服务器重载时（Reload）可以使插件生成默认的新配置文件