Admin user can set "unavailable" dates

[mhulet]

Is your feature request related to a problem? Please describe.
We might want to close specific spaces or bedrooms for renovations or just because we are taking holiday. Lodgings, bedrooms, bivouac spots or spaces must be shown as unavailable for specific dates even if there is no confirmed booking.

Describe the solution you'd like
Each bedroom and each space has an Edit page that allows to edit unavailability. There would be an "Indisponibilité" section with a "+" button to add a specific date. Each date would then be shown and user could delete each individually.

Describe alternatives you've considered
Hardcoding this.

Additional context
Nothing for now.