fix: some issue、 rebase 2.6dashboard

[WuJun2016]

link

https://github.com/harvester/harvester/issues/791 https://github.com/harvester/harvester/issues/846 https://github.com/harvester/harvester/issues/847 https://github.com/harvester/harvester/issues/854 https://github.com/harvester/harvester/issues/891 https://github.com/harvester/harvester/issues/897

rebase from dashboard