Put users and groups under the same menu and present them as a tree list on the front end

[potatoone]

1. It is strongly recommended to put users and groups under the same tree list, hoping to add batch select delete, disable and other functions.

For example

2. I also recommend adding the ability to quickly import user group parameters through an excel spreadsheet.

Add groups field

• Minor additional advice: The tree list can be multi-selected mouse drag to quickly change the user group ownership migration

[casbin-bot]

@tangyang9464 @JalinWang @imp2002

[hsluoyz]

Not planned, modify code by yourself