feat: Added logging and refactored code to accommodate

src/main/java/ch/zhaw/gartenverwaltung/io/JsonGardenPlan.java

@@ -145,7 +145,6 @@ public class JsonGardenPlan implements GardenPlan {
                         .registerModule(new Jdk8Module())
                         .writeValue(new File(dataSource.toURI()), cropMap.values());
             } catch (URISyntaxException e) {
-                // TODO: Log
                 throw new IOException(INVALID_DATASOURCE_MSG, e);
             }
         }