DOCS-3743: Update viam-server update instructions (#4114)

Author: npentrel

assets/scss/_styles_project.scss

@@ -3302,4 +3302,13 @@ div.tablestep > div.tablestep-content {
 .td-content > ul li, .td-content > ol li {
   margin-bottom: 0rem;
 }
+
+.td-content > ul {
+  padding-left: 1rem;
+}
+
+.td-content > .code-toolbar, .td-content * .code-toolbar {
+  margin-top: 1rem;
+}
+
 // Numbered list styling END

docs/manage/reference/viam-agent/_index.md

@@ -179,6 +179,17 @@ You can restart `viam-server` from the machine's part status dropdown to the rig
 
 For more information on managing `viam-agent` see [Manage `viam-agent`](/manage/reference/viam-agent/manage-viam-agent/).
 
+### Update or downgrade `viam-server` with `viam-agent`
+
+{{< alert title="Tip" color="tip" >}}
+The current version of `viam-server` is displayed in the machine's part status dropdown to the right of your machine’s name on its page in the Viam app.
+{{< /alert >}}
+
+1. Navigate to your machine's **CONFIGURE** tab.
+2. Click on **machine settings** on the left side of the page.
+3. Change the specified `viam-server` version.
+4. Save your configuration.
+
 ## `advanced_settings`
 
 <!-- prettier-ignore -->

docs/manage/reference/viam-agent/manage-viam-agent.md

@@ -24,14 +24,14 @@ aliases:
 
 - To stop `viam-agent`:
 
-  {{< alert title="Alert" color="note" >}}
-  When you stop `viam-agent`, the agent will stop `viam-server` as well.
-  {{< /alert >}}
-
   ```sh {class="command-line" data-prompt="$"}
   sudo systemctl stop viam-agent
   ```
 
+  {{< alert title="Alert" color="note" >}}
+  When you stop `viam-agent`, the agent will stop `viam-server` as well.
+  {{< /alert >}}
+
 - To restart `viam-agent`:
 
   {{< alert title="Alert" color="note" >}}

docs/operate/reference/viam-server/_index.md

@@ -61,11 +61,11 @@ If there are configured dependencies, resources are reconfigured in groups.
 You can see configuration changes made by yourself or by your collaborators by selecting **History** on the right side of your machine part's card on the **CONFIGURE** tab.
 You can also revert to an earlier configuration from the History tab.
 
-#### Maintenance window
+### Maintenance window
 
 There are a few updates that may make your machine temporarily unavailable:
 
-- `viam-agent` updating `viam-server`
+- [`viam-agent` updating `viam-server`](/manage/reference/viam-agent/#update-or-downgrade-viam-server-with-viam-agent)
 - configuration updates
 
 To avoid performing these updates until your machine is ready for maintenance, you can define a maintenance window.