* 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>
* Add floating date indicator while scrolling the timeline (#6433)
* Add `FeatureFlags.FloatingDateBadge`. This enables displaying the floating date badge in the timeline as you scroll.
* Don't display the floating badge if the timeline isn't reversed. Otherwise, this will affect talkback users and break the existing navigation
* Use `TimelineItem.formattedDate()` to get the date to display. Always try finding the closest one (usually it will be just the 1st one we try).
* Align designs with iOS. Also fix shadows in fade animation by adding some paddings.
* Update screenshots
---------
Co-authored-by: Gianluca Iavicoli <gianluca.iavicoli04@gmail.com>
Co-authored-by: ElementBot <android@element.io>
* Add `Theme.Black` to the `Theme` enum and update `isDark()` to include it.
* Refactor `ElementTheme` to accept a `Theme` object instead of a `darkTheme` boolean, allowing for more specific color mapping (e.g., setting `bgCanvasDefault` to `Color.Black` for the Black theme).
* Update `AdvancedSettingsPresenter` and `AdvancedSettingsState` to include "Black" as a user-selectable theme option.
* Adjust `ElementThemeApp` and `MaterialTextPreview` to handle the expanded theme selection.
* Add `ElementPreviewBlack` and update existing preview components to support the new theme.
* Update Konsist tests to ensure `@PreviewsDayNight` annotated functions don't have "BlackPreview" suffix.
* Add code to help debugging the saved nav state graph: this would help us diagnose the `TransactionTooLargeException` reports we've been seeing for months.
