feat(notifications): add support for included topics

this can be used to configure processors to only process notifications
that contain specific topics. if notification does not have a topic and
included topics are configured, the notification will not get processed
by the specific processor. this is mainly for the email processor but
can be used by other processors as well.

closes #32497

Signed-off-by: Hellgren Heikki <heikki.hellgren@op.fi>

plugins/notifications-common/report.api.md

@@ -64,6 +64,7 @@ export type NotificationProcessorFilters = {
   minSeverity?: NotificationSeverity;
   maxSeverity?: NotificationSeverity;
   excludedTopics?: string[];
+  includedTopics?: string[];
 };
 
 // @public (undocumented)

plugins/notifications-common/src/filters.ts

@@ -43,5 +43,8 @@ export const getProcessorFiltersFromConfig = (config: Config) => {
   filter.excludedTopics = config.getOptionalStringArray(
     'filter.excludedTopics',
   );
+  filter.includedTopics = config.getOptionalStringArray(
+    'filter.includedTopics',
+  );
   return filter;
 };

plugins/notifications-common/src/types.ts

@@ -130,6 +130,7 @@ export type NotificationProcessorFilters = {
   minSeverity?: NotificationSeverity;
   maxSeverity?: NotificationSeverity;
   excludedTopics?: string[];
+  includedTopics?: string[];
 };
 
 /**