Disable All option for non selectable variables (#4544)

# What this PR does
Disable All option for non selectable variables



## Checklist

- [ ] Unit, integration, and e2e (if applicable) tests updated
- [x] Documentation added (or `pr:no public docs` PR label added if not
required)
- [x] Added the relevant release notes label (see labels prefixed w/
`release:`). These labels dictate how your PR will
    show up in the autogenerated release notes.

grafana-plugin/src/pages/insights/variables.ts

@@ -4,8 +4,6 @@ import { InsightsConfig } from './Insights.types';
 
 const DEFAULT_VARIABLE_CONFIG: Partial<ConstructorParameters<typeof QueryVariable>[0]> = {
   hide: 0,
-  includeAll: true,
-  allValue: `.+`,
   isMulti: true,
   options: [],
   refresh: 1,
@@ -33,6 +31,8 @@ const getVariables = ({ isOpenSource, datasource, stack }: InsightsConfig) => ({
     label: 'Team',
     text: ['All'],
     value: ['$__all'],
+    includeAll: true,
+    allValue: `.+`,
     datasource,
     definition: `label_values(\${alert_groups_total}{slug=~"${stack}"},team)`,
     query: {
@@ -47,6 +47,8 @@ const getVariables = ({ isOpenSource, datasource, stack }: InsightsConfig) => ({
     label: 'Integration',
     text: ['All'],
     value: ['$__all'],
+    includeAll: true,
+    allValue: `.+`,
     datasource,
     definition: `label_values(\${alert_groups_total}{team=~"$team",slug=~"${stack}"},integration)`,
     query: {
@@ -61,6 +63,7 @@ const getVariables = ({ isOpenSource, datasource, stack }: InsightsConfig) => ({
     label: 'Service name',
     text: ['All'],
     value: ['$__all'],
+    includeAll: true,
     allValue: '($^)|(.+)',
     datasource,
     definition: `label_values(\${alert_groups_total}{slug=~"${stack}",team=~"$team"},service_name)`,
@@ -85,7 +88,6 @@ const getVariables = ({ isOpenSource, datasource, stack }: InsightsConfig) => ({
     value: ['oncall_alert_groups_total', 'grafanacloud_oncall_instance_alert_groups_total'],
     definition: 'metrics(alert_groups_total)',
     hide: 2,
-    includeAll: false,
   }),
   userNotified: new QueryVariable({
     ...DEFAULT_VARIABLE_CONFIG,