* refactor compose & announcements to coroutines
* fix code formatting
* add javadoc to InstanceInfoRepository
* fix comments in ImageDownsizer
* remove unused Either extensions
* add explicit return type for InstanceInfoRepository.getEmojis
* make ComposeViewModel.pickMedia return Result
* cleanup code in ImageDownsizer
* Add data model for instance configuration
* Support instance.configuration.statuses.max_characters
* Support instance.configuration.statuses.characters_reserved_per_url
* Support instance.configuration.polls.max_options and max_characters_per_option
* Pacify ktlint
* Support instance-configured poll durations
* Fixup versions for migration after rebase