hotfix: missing locale

Nit

fix: Connect selected calendar to credential (calcom#11283)

* Reduce the unhandled promise

* Connect selected calendar to credential

* Write credential to selected calendar

* Type fix

* Handle catching promises in separate threads

* Only call to list calendars if there are no credentialIds

* Changed type of IntegrationCalendar from undef to null

* Adding missing property to getting started

* Also add calendars.tsx

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Co-authored-by: Alex van Andel <me@alexvanandel.com>