feat(filters): Add project filter

[david-bretaud-dev]

First filter implementation => Project

According to this doc: https://outline.services.dataforgood.fr/doc/filtres-oYYdq64EP6

Name: "Projet"
Type: "Affichage"
Layer name: "all.project"
Comment: filtrer parmi tous les projets trouvés dans les données

API: https://maplibre.org/maplibre-gl-js/docs/API/classes/Map/#setfilter
Example: https://maplibre.org/maplibre-gl-js/docs/examples/filter-within-a-layer/