Direct paging improvements (hotfix) (#3079)

# What this PR does

Fixes https://github.com/grafana/oncall/pull/3064

## Which issue(s) this PR fixes

## Checklist

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

engine/apps/user_management/models/team.py

@@ -72,10 +72,14 @@ class TeamManager(models.Manager["Team"]):
                 )
                 direct_paging_integrations_to_create.append(alert_receive_channel)
             AlertReceiveChannel.objects.bulk_create(direct_paging_integrations_to_create, batch_size=5000)
-            created_direct_paging_integrations = AlertReceiveChannel.objects.filter(
-                organization=organization,
-                integration=AlertReceiveChannel.INTEGRATION_DIRECT_PAGING,
-            ).exclude(team__team_id__in=existing_team_ids)
+            created_direct_paging_integrations = (
+                AlertReceiveChannel.objects.filter(
+                    organization=organization,
+                    integration=AlertReceiveChannel.INTEGRATION_DIRECT_PAGING,
+                )
+                .exclude(team__team_id__in=existing_team_ids)
+                .exclude(team__isnull=True)
+            )
             default_channel_filters_to_create = []
             for integration in created_direct_paging_integrations:
                 channel_filter = ChannelFilter(

grafana-plugin/src/containers/IntegrationContainers/ExpandedIntegrationRouteDisplay/ExpandedIntegrationRouteDisplay.tsx

@@ -194,8 +194,8 @@ const ExpandedIntegrationRouteDisplay: React.FC<ExpandedIntegrationRouteDisplayP
               )}
 
               <VerticalGroup>
-                <HorizontalGroup spacing={'xs'}>
-                  <div data-testid="escalation-chain-select">
+                <div data-testid="escalation-chain-select">
+                  <HorizontalGroup spacing={'xs'}>
                     <InlineLabel
                       width={20}
                       tooltip="The escalation chain determines who and when to notify when an alert group starts."
@@ -258,9 +258,8 @@ const ExpandedIntegrationRouteDisplay: React.FC<ExpandedIntegrationRouteDisplayP
                         </HorizontalGroup>
                       </Button>
                     )}
-                  </div>
-                </HorizontalGroup>
-
+                  </HorizontalGroup>
+                </div>
                 {!isEscalationCollapsed && (
                   <ReadOnlyEscalationChain escalationChainId={channelFilter.escalation_chain} />
                 )}