feat: better server lint (#2850)

* feat: add stylistic eslint plugin

* feat: add missing line return

* feat: secure line-break style

* feat: disallow break before else

* feat: line between class members

* feat: better new line lint rule

server/src/integrations/memory-storage/serializers/default.serializer.ts

@@ -7,6 +7,7 @@ export class MemoryStorageDefaultSerializer<T>
     if (typeof item !== 'string') {
       throw new Error('DefaultSerializer can only serialize strings');
     }
+
     return item;
   }