fix: Connect atoms not working inside iframe (#25418)

* fix: google connect broken for iframe
* chore: add changesets
* chore: update atoms exports
* chore: update atoms exports

.changeset/long-ties-obey.md

@@ -0,0 +1,5 @@
+---
+"@calcom/atoms": patch
+---
+
+This PR fixes the issue of connect atoms not working inside iframes. It also updates the atoms exports to include the `useAvailableSlots` hook.