Fix #15438: Update filters and destination for 'Conversation' source …

…in notification alert (#15443)

* Add 'Mentions' enum for subscriptionCategory

* fix the user list selection field not showing for 'Mentioned Users' filter

* update the cypress for new changes

* fix teams not showing in the mention suggestions

openmetadata-spec/src/main/resources/json/schema/events/eventSubscription.json

@@ -86,6 +86,7 @@
         "Admins",
         "Assignees",
         "Owners",
+        "Mentions",
         "Followers",
         "External"
       ]

openmetadata-ui/src/main/resources/ui/cypress/common/AlertUtils.js

@@ -127,7 +127,8 @@ export const addEventTypeFilter = (
   }
 };
 
-export const addUpdaterNameFilter = (
+export const addFilterWithUsersListInput = (
+  filterTestId,
   filterNumber,
   updaterName,
   exclude = false
@@ -136,9 +137,7 @@ export const addUpdaterNameFilter = (
   cy.get(`[data-testid="filter-select-${filterNumber}"]`).click({
     waitForAnimations: true,
   });
-  cy.get('[data-testid="Updater Name-filter-option"]')
-    .filter(':visible')
-    .click();
+  cy.get(`[data-testid="${filterTestId}"]`).filter(':visible').click();
 
   // Search and select user
   interceptURL('GET', `/api/v1/search/query?q=*`, 'getSearchResult');