Merge pull request 'set empty covers for radios in the db funktion' (#17) from dev into main

Reviewed-on: #17

services/database/radios.js

@@ -13,6 +13,9 @@ exports.collection = function (callback) {
     .toArray((err, result) => {
       result.forEach(item => {
         item.type = "radio";
+        if (!item.covers) {
+          item.covers = {};
+        }
       });
       callback(result);
     });