Docs: InfluxDB doc improvements (#32815)

* Create getting-started-influxdb.md

* Update getting-started-prometheus.md

* Update getting-started-sql.md

* data source edits

* single source intro

* Create first-step.md

* Update influxdb.md

* Update getting-started-influxdb.md

* Update influxdb.md

* break up long file

* Update influxdb-templates.md

* more updates

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* Update getting-started-sql.md

* Update _index.md

* edits

* Update docs/sources/datasources/influxdb/_index.md

Co-authored-by: Ursula Kallio <73951760+osg-grafana@users.noreply.github.com>

* Delete influxdb.md

* Update getting-started-influxdb.md

* Update influx-flux.md

* Update _index.md

* Update getting-started-influxdb.md

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* content

* content changes

* Update _index.md

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* Update getting-started-influxdb.md

* Update getting-started-influxdb.md

* Merge branch 'master' into docs-influxdb

* updated port

Co-authored-by: Ursula Kallio <73951760+osg-grafana@users.noreply.github.com>

docs/sources/explore/logs-integration.md

@@ -10,7 +10,7 @@ weight = 15
 Along with metrics, Explore allows you to investigate your logs in the following data sources:
 
 - [Elasticsearch]({{< relref "../datasources/elasticsearch.md" >}})
-- [InfluxDB]({{< relref "../datasources/influxdb.md" >}})
+- [InfluxDB]({{< relref "../datasources/influxdb/_index.md" >}})
 - [Loki]({{< relref "../datasources/loki.md" >}})
 
 During an infrastructure monitoring and incident response, you can dig deeper into the metrics and logs to find the cause. Explore also allows you to correlate metrics and logs by viewing them side-by-side. This creates a new debugging workflow: