Docs/panel refactor (#43569)

* new refactored panel docs

* fixed links

* removed xtra sharing link, added links to panel display option tasks

* fixed typo

* add aliases

* incorporate PM feedback

* intermediate commit to resolve merge conflict

* final changes to resolve merge conflicts

docs/sources/visualizations/graph-panel.md

@@ -16,9 +16,9 @@ The graph panel can render metrics as a line, a path of dots, or a series of bar
 Graph visualizations allow you to apply:
 
 - [Alerts]({{< relref "../alerting/_index.md" >}}) - This is the only type of visualization that allows you to set alerts.
-- [Data transformations]({{< relref "../panels/transformations/_index.md" >}})
-- [Field overrides]({{< relref "../panels/field-overrides.md" >}})
-- [Thresholds]({{< relref "../panels/thresholds.md" >}})
+- [Transform data]({{< relref "../panels/transform-data/apply-transformation-to-data.md" >}})
+- [Add a field override]({{< relref "../panels/override-field-values/add-a-field-override.md" >}})
+- [Add a threshold]({{< relref "../panels/specify-thresholds/add-a-threshold.md" >}})
 
 ## Display options