[CAL-3695] Apply buffer-time limits do dynamically scheduled events

[nvh]

Is your proposal related to a problem?

For regular event types it's possible to specify limits, especially the buffer time before and after the scheduled event. When events are dynamically scheduled, it is not possible to specify such limits, causing back-to-back scheduled meetings.

Describe the solution you'd like

In the user settings, close to the dynamic group links toggle, add a buffer time dropdown to specify a time before and after the event that should be kept clear.

Describe alternatives you've considered

I don't know of any workarounds or other solutions. Maybe a organization-wide round robin event could work too, but we would like to specify specific people instead of picking randomly from a pool.

Additional context

This issue, is related, but seems to be about the number of times an event can be booked instead of the buffer times

Requirement/Document

After creating this ticket I noticed that in the design files, there is a section dedicated to something similar.

---

House rules

• If this issue has a 🚨 needs approval label, don't start coding yet. Wait until a core member approves feature request by removing this label, then you can start coding.
  • For clarity: Non-core member issues automatically get the 🚨 needs approval label.
  • Your feature ideas are invaluable to us! However, they undergo review to ensure alignment with the product's direction.

_CAL-3695