feat: support department location selector in leboncoin (#5073)

Co-authored-by: gileri <e+git8413@linuxw.info>

lib/routes/leboncoin/ad.js

@@ -31,6 +31,10 @@ const convertQueryToFilters = (query) => {
                         return { locationType: 'department_near', department_id: l.slice(3) };
                     }
 
+                    if (l.startsWith('d_')) {
+                        return { locationType: 'department', department_id: l.slice(2) };
+                    }
+
                     {
                         if (l.match(/.+_.+/)) {
                             const [city, zipcode] = l.split('_');