Customize home page

[myselfghost]

What would you like to be added: 允许自定义首页，最好是允许每个用户自定义自己的首页。 比如设置‘活跃告警’为首页，或者设置‘/dashboards’ 为首页。甚至允许用户设置任意具体的仪表盘为首页‘/dashboards/3’

Why is this needed:

对使用用户更优好。