Analytics and warnings reporting using Matomo

[mdrlzy]

We need to add analytics to collect warnings. Matomo is suitable for this since it is open source. Also it is necessary to add a toggle switch in the settings. https://github.com/matomo-org/matomo https://github.com/matomo-org/matomo-sdk-android

[kirillt]

Good idea. One of such warnings would be sent when requesting closed mutex in ResourcesIndex (which is fine in general, but in our case all coroutines working with single index could be sequenced).