* imlemented `CameraSpotDetector`
* separated generic `DialogSwitch`
* added `CameraFeature` model
* added `CameraFeaturesListTile` to metering section
* added features dialog subtitles
* added long press to remove metering spot
* translations
* hide camera features for purchasable status
* hide `CameraHistogram` & `CameraSpotDetector` if purchasable
* bumped iap version
* fixed tests
* removed redundant camera state emission
* tests
* Fixed remote config initalization
* updated pro features description
