Docs: Cleanup alerting documentation, part 1 (#40737)

* First commit.

* Adding shared content.

* More changes.

* More changes

* Updated few more topics, fixed broken relrefs.

* Checking in changes.

* Some more topics scrubbed.

* Minor update.

* Few more changes.

* Index pages are finally somewhat sorted. Added relevant information and new topics.

* Updated Alert grouping.

* Last bunch of changes for today.

* Updated folder names, relrefs, and some topic weights.

* Fixed typo in L37, notifications topic.

* Fixed another typo.

* Run prettier.

* Fixed remaining broken relrefs.

* Minor reorg, added link to basics some overview topic.

* Some more re-org of the basics section.

* Some more changes.

* More changes.

* Update docs/sources/shared/alerts/grafana-managed-alerts.md

Co-authored-by: Fiona Artiaga <89225282+GrafanaWriter@users.noreply.github.com>

* Update docs/sources/alerting/unified-alerting/_index.md

Co-authored-by: Eve Meelan <81647476+Eve832@users.noreply.github.com>

* Update docs/sources/alerting/unified-alerting/_index.md

Co-authored-by: Eve Meelan <81647476+Eve832@users.noreply.github.com>

* Update docs/sources/alerting/unified-alerting/opt-in.md

Co-authored-by: Eve Meelan <81647476+Eve832@users.noreply.github.com>

* Update docs/sources/alerting/unified-alerting/notification-policies.md

Co-authored-by: Eve Meelan <81647476+Eve832@users.noreply.github.com>

* Update docs/sources/alerting/unified-alerting/alert-groups.md

Co-authored-by: Eve Meelan <81647476+Eve832@users.noreply.github.com>

* Update docs/sources/alerting/unified-alerting/alerting-rules/_index.md

Co-authored-by: Fiona Artiaga <89225282+GrafanaWriter@users.noreply.github.com>

* Update docs/sources/alerting/unified-alerting/alerting-rules/alert-annotation-label.md

Co-authored-by: Eve Meelan <81647476+Eve832@users.noreply.github.com>

* Update docs/sources/alerting/unified-alerting/alerting-rules/alert-annotation-label.md

Co-authored-by: Fiona Artiaga <89225282+GrafanaWriter@users.noreply.github.com>

* Update docs/sources/alerting/unified-alerting/alerting-rules/alert-annotation-label.md

Co-authored-by: Fiona Artiaga <89225282+GrafanaWriter@users.noreply.github.com>

* Update docs/sources/alerting/unified-alerting/alerting-rules/create-cortex-loki-managed-recording-rule.md

Co-authored-by: Fiona Artiaga <89225282+GrafanaWriter@users.noreply.github.com>

* Ran prettier and applied suggestion from code review.

* Update docs/sources/alerting/unified-alerting/message-templating/_index.md

Co-authored-by: Fiona Artiaga <89225282+GrafanaWriter@users.noreply.github.com>

* Update docs/sources/alerting/unified-alerting/contact-points.md

Co-authored-by: Fiona Artiaga <89225282+GrafanaWriter@users.noreply.github.com>

* Update docs/sources/alerting/unified-alerting/contact-points.md

Co-authored-by: Fiona Artiaga <89225282+GrafanaWriter@users.noreply.github.com>

* Change from code review. Also fixed typo "bos" in playlist topic.

* Ran prettier to fix formatting issues.

* Update docs/sources/alerting/unified-alerting/alerting-rules/edit-cortex-loki-namespace-group.md

Co-authored-by: Fiona Artiaga <89225282+GrafanaWriter@users.noreply.github.com>

* Update docs/sources/alerting/unified-alerting/contact-points.md

Co-authored-by: Fiona Artiaga <89225282+GrafanaWriter@users.noreply.github.com>

* Update docs/sources/alerting/unified-alerting/basics/alertmanager.md

Co-authored-by: Fiona Artiaga <89225282+GrafanaWriter@users.noreply.github.com>

* Update docs/sources/alerting/unified-alerting/basics/alertmanager.md

Co-authored-by: Fiona Artiaga <89225282+GrafanaWriter@users.noreply.github.com>

* Update docs/sources/alerting/unified-alerting/basics/evaluate-grafana-alerts.md

Co-authored-by: Fiona Artiaga <89225282+GrafanaWriter@users.noreply.github.com>

* Update docs/sources/alerting/unified-alerting/contact-points.md

Co-authored-by: Fiona Artiaga <89225282+GrafanaWriter@users.noreply.github.com>

* More changes from code review.

* Replaced drop down with drop-down

* Fix broken relrefs

* Update docs/sources/alerting/unified-alerting/alerting-rules/create-cortex-loki-managed-rule.md

Co-authored-by: Eve Meelan <81647476+Eve832@users.noreply.github.com>

* Update docs/sources/alerting/unified-alerting/alerting-rules/rule-list.md

Co-authored-by: Eve Meelan <81647476+Eve832@users.noreply.github.com>

* Few more.

* Couple more.

Co-authored-by: Fiona Artiaga <89225282+GrafanaWriter@users.noreply.github.com>
Co-authored-by: Eve Meelan <81647476+Eve832@users.noreply.github.com>

docs/sources/visualizations/geomap.md

@@ -122,7 +122,7 @@ The markers layer allows you to display data points as different marker shapes s
 The heatmap layer clusters various data points to visualize locations with different densities.
 To add a heatmap layer:
 
-Click on the drop down menu under Data Layer and choose `Heatmap`.
+Click on the drop-down menu under Data Layer and choose `Heatmap`.
 
 Similar to `Markers`, you are prompted with various options to determine which data points to visualize and how.
 
@@ -130,6 +130,6 @@ Similar to `Markers`, you are prompted with various options to determine which d
 
 ![Heatmap Layer Options](/static/img/docs/geomap-panel/geomap-heatmap-options-8-1-0.png)
 
-- **Weight values** configures the intensity of the heatmap clusters. `Fixed value` keeps a constant weight value throughout all data points. This value should be in the range of 0~1. Similar to Markers, there is an alternate option in the drop down to automatically scale the weight values depending on data values.
+- **Weight values** configures the intensity of the heatmap clusters. `Fixed value` keeps a constant weight value throughout all data points. This value should be in the range of 0~1. Similar to Markers, there is an alternate option in the drop-down to automatically scale the weight values depending on data values.
 - **Radius** configures the size of the heatmap clusters.
 - **Blur** configures the amount of blur on each cluster.