[#189] added custom event chip (#262)

Co-authored-by: Camille Moussu <cmoussu@linagora.com>

src/setupTests.ts

@@ -43,6 +43,14 @@ jest.mock("openid-client", () => ({
 }));
 const originalWarn = console.warn;
 
+class ResizeObserverMock {
+  observe() {}
+  unobserve() {}
+  disconnect() {}
+}
+
+(global as any).ResizeObserver = ResizeObserverMock;
+
 beforeAll(() => {
   console.warn = (...args: unknown[]) => {
     if (