Bundle the most recent set of IOCs with every release

[lsd-cat]

The APK currently needs an internet connection to download the most recent IOCs on the first startup. It could be useful if with every release we bundled the most recent we have at that date, so that an apk shared via other means can fully work offline. Similarly, users should be able to load IOCs updates from the filesystem, so that they can be distributed via other means in case of censorship (like via telegram bots).