Docs: Update links for 7.0 (#24751)

* update menu

* updated alert list

* Update alert-list-panel.md

* Update alert-list-panel.md

* Update bar-gauge-panel.md

* Delete bar_gauge.md

* Delete dashlist.md

* Update dashboard-list-panel.md

* deleted old panels

* Update gauge-panel.md

* Update graph-panel.md

* Update heatmap.md

* Update logs-panel.md

* Update news-panel.md

* Updated stat panel

* Update table-panel.md

* Update text-panel.md

* Fixed broken links

* Update _index.md

* Update alerts-overview.md

* Update add-a-panel.md

* Update field-configuration-options.md

* removed beta text

* Update inspect-panel.md

* Update panel-editor.md

* Update thresholds.md

* Update transformations.md

* Update _index.md

* Update _index.md

* Update _index.md

* Update _index.md

* Update _index.md

* Update transformations.md

docs/sources/getting-started/_index.md

@@ -7,3 +7,6 @@ identifier = "getting-started"
 weight = 100
 +++
 
+# Getting started
+
+These guides will help you get started and acquainted with Grafana. To learn more about Grafana in general, refer to [What is Grafana?]({{< relref "what-is-grafana.md" >}}).

docs/sources/getting-started/getting-started.md

@@ -43,7 +43,7 @@ Different user types will have different interests. Some suggestions are listed
 
 All users might want to learn about:
 
-* [Panels]({{< relref "../features/panels/panels.md" >}})
+* [Panels]({{< relref "../panels/panels-overview.md" >}})
 * [Dashboards]({{< relref "../features/dashboard/dashboards.md" >}})
 * [Data sources]({{< relref "../features/datasources/data-sources.md" >}}) and [Add a data source]({{< relref "../features/datasources/add-a-data-source.md" >}})
 * [Keyboard shortcuts]({{< relref "../features/shortcuts.md" >}})