Show on header closest/current appointment info

[sntlln93]

Checklist

• [x] Component
• [x] API call
• [x] GET /appointments/closest
• [x] Open AppointmentInfo when clicking/tapping

Client

Show the appointment that is happening right now with:

• Full name of the patient
• Text that says "atendiendo hasta $endTime".

If there is practician is available, show closest appointment with:

• Full name of the patient
• Text that says "Comienza en $startTime".

Api

The optimal path will be is to do it with a GET closest-appointment/ endpoint but the fastest way is to reuse the GET appointments/ endpoint.