Add labels to Selector by clicking on labels in result set [React UI]

[Hixon10]

1. I open the Web UI - http://localhost:9090/new/graph
2. I enter a selector (for example, go_memstats_alloc_bytes)
3. I receive some results in table. For example:

go_memstats_alloc_bytes{instance="localhost:9090", job="prometheus"} | 20346216

4. I want to automatically change my selector to go_memstats_alloc_bytes{instance="localhost:9090"}, by click clicking on instance="localhost:9090" in result table.

This feature dramatically improve my UX, because right now I need to copy labels, and it is really hard task (I need to select label without unnecessary symbols and so on).

[hagen1778]

It might be not trivial to add filter automatically to the query, because the query itself could be very complex.
I'd be happy if label-value pair will be just copied to the buffer when I click on it, so I can decide myself where to paste it.

[roidelapluie]

This makes sense, I have added the help wanted label.

[beorn7]

Hello from the bug scrub.

#11229 fixed this issue (more or less).