Improve milestone filter on issues page (#22423) (#24440)
Backport #22423 by @lunny
Now we have `All milestones`, `No milestones`, `Open milestones` and
`Closed milestones`.
Fix #11924
Fix #22411
<img width="1166" alt="image"
src="https://user-images.githubusercontent.com/81045/212243375-95eea035-a972-44b8-8088-53db614cb07e.png">
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
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