Draft: POC: work items at group level

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app/assets/javascripts/graphql_shared/queries/users_search.query.graphql

@@ -2,25 +2,50 @@
 #import "~/graphql_shared/fragments/user_availability.fragment.graphql"
 
 query projectUsersSearch($search: String!, $fullPath: ID!, $after: String, $first: Int) {
-  workspace: project(fullPath: $fullPath) {
-    id
-    users: projectMembers(
-      search: $search
-      relations: [DIRECT, INHERITED, INVITED_GROUPS]
-      first: $first
-      after: $after
-      sort: USER_FULL_NAME_ASC
-    ) {
-      pageInfo {
-        hasNextPage
-        endCursor
-        startCursor
+  workspace: namespace(fullPath: $fullPath) {
+    ... on ProjectNamespace {
+      id
+      users: projectMembers(
+        search: $search
+        relations: [DIRECT, INHERITED, INVITED_GROUPS]
+        first: $first
+        after: $after
+        sort: USER_FULL_NAME_ASC
+      ) {
+        pageInfo {
+          hasNextPage
+          endCursor
+          startCursor
+        }
+        nodes {
+          id
+          user {
+            ...User
+            ...UserAvailability
+          }
+        }
       }
-      nodes {
-        id
-        user {
-          ...User
-          ...UserAvailability
+    }
+    ... on Group {
+      id
+      users: groupMembers(
+        search: $search
+        relations: [DIRECT, DESCENDANTS, INHERITED]
+        first: $first
+        after: $after
+        sort: USER_FULL_NAME_ASC
+      ) {
+        pageInfo {
+          hasNextPage
+          endCursor
+          startCursor
+        }
+        nodes {
+          id
+          user {
+            ...User
+            ...UserAvailability
+          }
         }
       }
     }