refactor: server events (#8204)

* refactor: server events

* fix typo

---------

Co-authored-by: Daniel Dietzler <36593685+danieldietzler@users.noreply.github.com>

server/test/repositories/event.repository.mock.ts

@@ -0,0 +1,10 @@
+import { IEventRepository } from 'src/interfaces/event.interface';
+
+export const newEventRepositoryMock = (): jest.Mocked<IEventRepository> => {
+  return {
+    clientSend: jest.fn(),
+    clientBroadcast: jest.fn(),
+    serverSend: jest.fn(),
+    serverSendAsync: jest.fn(),
+  };
+};