Filter inactive postcodes

src/main.rs

@@ -144,6 +144,7 @@ fn build() {
         .from_reader(io::stdin());
     let entries = csv_reader.deserialize()
         .filter_map(|r: Result<Postcode, csv::Error>| r.ok())
+        .filter(|full| match full.status { Status::Live => true, _ => false })
         .map(|full: Postcode| SmolPostcode::from_postcode(full))
         .map(|smol| Entry::new(smol.postcode.to_owned(), SerdeWrapper(smol)));