Fixed a bug where returning from the background on the conversation screen would result in the input view being hidden
Refactored the PhotoCollectionPickerViewController to use the SettingsTableViewController convention
Updated the SettingsTableViewModel to worked based on Combine instead of the DatabaseObservable so it's more reusable for non-db cases
Fixed a couple of issues around the duplicate messages handling
Fixed a few issues with ClosedGroup polling and ClosedGroup control message handling
Started working through updating the MediaGallery