Explore profiles: label values query should filter by service name and preceding label filters

[tomershafir]

For example, on labels tab, I see that the label values being queried are not filtered by service name.

Possibly missing filters:

• On labels tab, label values query should filter by service name and preceding label filters.
• On flamegraph tab, label values query should filter by service name and preceding label filters.

[akvlad]

@tomershafir
Done in 3.2.33
Feel free to update and try.