* Create permanent subscriptions
The subscriptions have to be permanently open, otherwise, the cache gets outdated.
E.g. in case a view is open, which does not subscribe to the download updates, finished downloads are never received and thus, data of existing chapters/mangas in the cache get outdated
* [Codegen][Tool] Get latest data from cache for automatic chapter deletion after reading
The manga chapters query is on "standby" to prevent the reader from rerender in case the underlying query data updates, which would cause the reader to jump back to the beginning of the last read page.
Thus, when checking if the chapter should be automatically deleted, the data from the query can't be used, since it is outdated.
E.g. in case a manga was already loaded through the category mangas query, the query for that specific manga should not run against the server if it hasn't been executed before
