* Add support for slash commands
* Update screenshots
* Rename module `slash` to `slashcommands`
* Rename `SlashCommand` to `SlashCommandService`
* Introduce MsgType in order to send text message with a different msgtype value.
* Format file and add parameter names, add default values and cleanup
* Add isSupported parameter to filter out unsupported yet commands.
* Slash commands: disable suggestions if the feature is disabled.
* Fix sending shrug command.
* Add missing test on SuggestionsProcessor
* Add tests on MessageComposerPresenter about slash command.
* Fix import ordering
* Add missing tests on CommandExecutor
* Add missing tests in MarkdownTextEditorStateTest
* Slash commands: Improve code when sending message with prefix.
* Slash commands: Add support for /unflip
---------
Co-authored-by: ElementBot <android@element.io>
a77662421c