Add display of tutor's designated spot in piscine cluster

[Maix0]

Currently this PR only change the fact that in piscine cluster, some predefined spot will be displayed differently to indicate that this is a tutor's only spot

This also change the maps_*.py files, but instead of changing every file I made a function that will apply default values to some known keys and log said keys log onto stdout.

if this is unwanted please tell me and i'll revert that change.

The tutor's spot is only shown in active piscine cluster, but they are static (in the sense that they are defined in the map.py)
This should be fine since they shouldn't change everyday

[sentry-io]

🔍 Existing Issues For Review

Your pull request is modifying functions with the following pre-existing issues:

📄 File: routes/f_front.py

Function	Unhandled Issue
index	IndexError: list index out of range front.index Event Count: 2

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