Updated the SharedConfigMessage type to have a TTL of 30 days
Updated the SnodeAPI to have a 'poll' method to be more consistent with the OpenGroupAPI (it also does multiple things now so is cleaner)
Added logic to limit the number of config messages to be retrieved per poll
Added the 'ValidatableResponse' protocol to standardise SnodeAPI response validation
Added the libSession version to the logs
Fixed an issue where the user profile pic wouldn't get synced correctly due to memory going out of scope
Fixed some threading issues
Refactored the thread variants to follow the updated terminology (will think about refactoring other code areas later)
Cleaned up the Combine error handling
Started fixing broken unit tests
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
