make explanations of queue Status items and Labels available on mouseover

[ghwood]

Describe the issue / enhancement
In the general queue view (queue.ietf.org) it would be very helpful to have a the slightly longer explanation of what each label (in the "Labels" and "Status" columns) appear when the cursor passes over them. These could/should be taken from:

https://queue.rfc-editor.org/about/

Link(s) to relevant page(s)

https://queue.rfc-editor.org

[alexisannerossi]

triage: move to queue repo