Update columns.json

columns.json

@@ -1 +1 @@
-{"data_columns": ["size_sqm", "number_of_bedrooms", "number_of_bathrooms", "number_of_floors", "parking_space", "gacuriro", "kacyiru", "kanombe", "kibagabaga", "kicukiro", "kimironko", "nyamirambo", "nyarutarama", "apartment", "bungalow", "house", "villa"]}
+{"data_columns": ["size_sqm", "number_of_bedrooms", "number_of_bathrooms", "number_of_floors", "year_built", "parking_space", "furnished", "proximity_to_city_center_km", "proximity_to_schools_km", "security_features", "price_per_sqm", "kacyiru", "kanombe", "kibagabaga", "kicukiro", "kimironko", "nyamirambo", "nyarutarama", "remera", "bungalow", "house", "villa"]}