feat: add resizeobserver mock to jest setup

- created a new file `jest.setup.cjs.js` for jest setup configurations
- added a global mock for `resizeobserver` to prevent test failures due to its absence in jsdom environment

Author: chiribuc

jest.setup.cjs.js

@@ -0,0 +1,5 @@
+global.ResizeObserver = class ResizeObserver {
+  observe() {}
+  unobserve() {}
+  disconnect() {}
+};