[Feature Claim] User experience optimization

[luc99hen]

• Title: User experience optimization
• Description: We want yurt-dashboard could be more than a web interface of an OpenYurt Cluster but be more friendly to novice OpenYurt users. For example, we can show users the information about how many online users are or how many nodes have been joined in. Other suggestions are also welcome :> !

[SnehaChaursia]

@luc99hen could you please assign this issue to me .