[DOC] Change APM dashboard to Service Graph view (#63818)
* Change APM dashboard to Service View graph
* Apply suggestions from code review
* Update docs/sources/explore/trace-integration.md
* Update docs/sources/explore/trace-integration.md
(cherry picked from commit ac5dbf2632)
Co-authored-by: Kim Nylander <104772500+knylander-grafana@users.noreply.github.com>