feat: add opt property to use schedule name

[LauraMoraB]

We use multiple on-call schedules for the same team and would like to show the Schedule Name instead of the ownerName in the on-call card.

The PR introduces a new (optional) property to specify whether to use the schedule name or keep the default value of schedule.ownerTeam.name.

The usage is as follows:

  <Route 
      path="/opsgenie"
      element={
        <OpsgeniePage 
            onCallUseScheduleName
        />
      } 
    />

[metallaw]

Any chances to getting this merged? Would appreciate this capability as we also have multiple schedules by some teams and this would make the "WHO IS ON-CALL" page more informative.