add shift swap request demo video to public docs (#2858)

# What this PR does

Adds a demo video for Shift Swaps to the public documentation.

Closes #2832 

## Checklist

- [x] Unit, integration, and e2e (if applicable) tests updated
- [x] Documentation added (or `pr:no public docs` PR label added if not
required)
- [x] `CHANGELOG.md` updated (or `pr:no changelog` PR label added if not
required)

docs/sources/on-call-schedules/_index.md

@@ -42,11 +42,22 @@ Use the Grafana OnCall Terraform provider to manage schedules within your “as-
 via Terraform are automatically added to your schedules in Grafana OnCall. Similar to the iCal import, these schedules
 read-only and cannot be edited from the UI.
 
-To learn more, read our [Get started with Grafana OnCall and Terraform](
-<https://grafana.com/blog/2022/08/29/get-started-with-grafana-oncall-and-terraform/>) blog post.
+To learn more, read our [Get started with Grafana OnCall and Terraform](https://grafana.com/blog/2022/08/29/get-started-with-grafana-oncall-and-terraform/)
+blog post.
 
 ### Shift swap requests
 
+<div style="position: relative; padding-bottom: 56.25%; height: 0;">
+  <iframe
+    src="https://www.loom.com/embed/1638acd3033e48d5ace554e927a016a3?sid=ed08af31-5176-4c69-b91b-f76f4785eb0e"
+    frameborder="0"
+    webkitallowfullscreen
+    mozallowfullscreen
+    allowfullscreen
+    style="position: absolute; top: 0; left: 0; width: 100%; height: 100%;"
+  />
+</div>
+
 Sometimes you may need someone to cover your scheduled on-call shifts (e.g. you are going on vacation
 for a couple of weeks). You can then create a shift swap request, which will let your teammates
 know about this as well as allowing them to volunteer and take your affected shifts for that period.

docs/sources/user-and-team-management/_index.md

@@ -27,8 +27,6 @@ organization administrator. There are three available roles: `Viewer`, `Editor`,
 
 ### Role-based access control (RBAC)
 
-<!-- markdownlint-disable MD033 -->
-
 <div style="position: relative; padding-bottom: 56.25%; height: 0;">
   <iframe
     src="https://www.loom.com/embed/bcc472b2a22f40bdb62baf2a85cf1532?sid=e5160621-ca5b-4a60-9d31-a6ecac4a35f8"
@@ -37,11 +35,9 @@ organization administrator. There are three available roles: `Viewer`, `Editor`,
     mozallowfullscreen
     allowfullscreen
     style="position: absolute; top: 0; left: 0; width: 100%; height: 100%;"
-  /></iframe>
+  />
 </div>
 
-<!-- markdownlint-enable MD033 -->
-
 RBAC for Grafana plugins allows for fine-grained access control so you can define custom roles and actions for users in Grafana OnCall. Use RBAC to grant
 specific permissions within the Grafana OnCall plugin without changing the user’s basic role at the organization level. You can fine-tune basic roles to add or
 remove certain Grafana OnCall RBAC roles.