fix: create event type with output of create event type

[linear]

Problem

If we create event type X and then try to copy paste response as body for Y there are errors related to booking fields and offset:

https://calcominc.slack.com/archives/C08A5QYSTJ6/p1746967955511829

Solution

1. Update booking-fields.input.ts to allow passing location default booking field - users can only specify label. In create-event-type.input.ts and update-event-type.input.ts allow passing offsetStart 0 because that is the default value and should be valid.
   1. Since we have location field input - update booking-fields.ts to transform it and then input-event-types.service.ts to use custom location field and if no location field is passed have a default one like with other booking fields.
2. Return location default booking field label in booking-fields.ts and then reflect that in output type booking-fields.output.ts.
3. Add a test in event-types.controller.e2e-spec.ts to test that if we create event type X and then take its response as body for creating event type Y but with new slug and name that the response of Y matches X successfully.

Bonus

Refactor platform libraries yarn publish to yarn publish-npm so pre-publish and post-publish steps run one after another.

[linear]

CAL-5754 fix: create event type with output of create event type

[KarthikRaju391]

Hi, I would like to work on this. How can I get started?

[JigyasuRajput]

hey! is anyone working on this issue?

[KarthikRaju391]

I want to, but I'm not sure if one should be assigned before getting to work

[supalarry]

Hi there, thanks for the interest to work on this task. I already have pull request ready for this so there is no need to pick this task up.

Thank you!