Updated the UI text of the Storage, monitoring & Alerting, and Cluster Settings pages

Created by: serenashe

Signed-off-by: serenashe serenashe@yunify.com

What type of PR is this? /kind documentation

What this PR does / why we need it: Updated the UI text of the Storage, monitoring & Alerting, and Cluster Settings pages. No change was made to the code logic.

/assign @harrisonliu5 Please take a look at this PR, thanks.