Sort by similarity in Search Group's Project dropdown

Changelog: changed

app/assets/javascripts/search/store/actions.js

@@ -30,7 +30,7 @@ export const fetchProjects = ({ commit, state }, search) => {
 
   if (groupId) {
     // TODO (https://gitlab.com/gitlab-org/gitlab/-/issues/323331): For errors `createFlash` is called twice; in `callback` and in `Api.groupProjects`
-    Api.groupProjects(groupId, search, {}, callback);
+    Api.groupProjects(groupId, search, { order_by: 'similarity' }, callback);
   } else {
     // The .catch() is due to the API method not handling a rejection properly
     Api.projects(search, { order_by: 'id' }, callback).catch(() => {

spec/frontend/search/store/actions_spec.js

@@ -67,7 +67,14 @@ describe('Global Search Store Actions', () => {
       it('calls Api.groupProjects', () => {
         actions.fetchProjects({ commit: mockCommit, state });
 
-        expect(Api.groupProjects).toHaveBeenCalled();
+        expect(Api.groupProjects).toHaveBeenCalledWith(
+          state.query.group_id,
+          state.query.search,
+          {
+            order_by: 'similarity',
+          },
+          expect.any(Function),
+        );
         expect(Api.projects).not.toHaveBeenCalled();
       });
     });