Sliding Sync + New Timeline API (#189)

* Begin adopting new Timeline API.

* Add edited indicator and reactions.

* vector-im/element-x-ios/issues/65 - Sliding sync support
* Fix missing room display name, wrong placeholder avatar text color and various other warnings that would fail the build on the CI

* Various tweaks:
* using release version of the demo branch of the sdk
* enabled home screen last room messages
* switched debug mode rust logging to warn
* enabled redactions
* enabled new logout flows and soft logout
* enabled replies

* Fix room member display name and avatar crashes / race condition, fix unit tests
* Make the ClientProxy and the UserSession MainActors
* Remove unused MatrixRustSDK imports, we should strive to keep these only in top level services and proxies
* Don't start either of the syncs while in soft logout

* #181: Style the session verification banner to match Figma.
* #181: Update verification modal.
* #181: Update snapshot tests.

* Make session verification state machine less pedantic
* Remove unnecessary weak selfs
* Various tweaks following code review:
* add start and stop sync client proxy methods
* move ss proxy url the build settings
* made media provider load results discardable
* added publishers for the roomSummaryProvider's total number of rooms and state

* Fix when sender details are shown
* Disable sync v2, causes duplicates in the timeline (as expected)
* Move ClientProxy media loading off the main queue and into a detached task
* Another attempt at moving image loading off the main queue
* Moved home screen diffing and latest room fetching to the background
* Prevent the timeline composer from becoming the first responder when not needed

* Bump to a newer version of the RustSDK

* Fixes vector-im/element-x-ios/issues/107 - New home screen design
* Implement thumbnail loading instead of full image avatars.
* Revert "Disable sync v2, causes duplicates in the timeline (as expected)"
* Add support for local echoes, dispatching detached tasks to a concurrenc GCD queue
* Move the session verification banner to a List Section to avoid UI glitches
* Optimise room mapping after sliding sync updates and thumbnail fetching
* Replace home screen List with a LazyVStack in an attempt to fix performance. Moved move summary provider room updating to a background thread

* Fixes vector-im/element-x-ios/issues/177 - New Bubbles Design
* Define in group state for timeline items
* Add replies into the bubble
* Add timeline width environment value
* Add `RoundedCorner` shape with specific corners rounding
* Add in group state for previews
* Implement bubble grouping logic
* Timeline avatar layout changes
* Fix placeholder avatars for dark mode
* New bubbles design
* Update mock timeline items
* Update timeline separator design
* Update room screen reference screenshots
* Add changelog
* Formatting fixes
* Add some space before single or beginning outgoing items

* Redesign the message composer

* Handle the msgtype enum.

* Update room name label line limit and incoming bubble background. Disabled syncv2, ss withCommonExtensions and session verification controller checking

* Increase default back pagination limit.
* Stop parsing links and tidy up composer button.
* Also fix the frame of an image whilst loading.
* Bump SDK package version.

* Remove app states about settings
* Add strings
* Use colors on placeholder avatars
* Tiny changes for placeholder avatars
* Update settings screen design
* Provide a user display name from the mock client
* Settings screen presentation logic
* Add changelog
* Update reference screenshots

Co-authored-by: Doug <douglase@element.io>
Co-authored-by: ismailgulek <ismailgulek@users.noreply.github.com>
Co-authored-by: ismailgulek <ismailg@matrix.org>

ElementX/Sources/Generated/Strings+Untranslated.swift

@@ -12,6 +12,8 @@ import Foundation
 extension ElementL10n {
   /// Confirm
   public static let actionConfirm = ElementL10n.tr("Untranslated", "action_confirm")
+  /// Match
+  public static let actionMatch = ElementL10n.tr("Untranslated", "action_match")
   /// Forgot password
   public static let authenticationLoginForgotPassword = ElementL10n.tr("Untranslated", "authentication_login_forgot_password")
   /// Welcome back!
@@ -20,6 +22,8 @@ extension ElementL10n {
   public static let authenticationServerInfoMatrixDescription = ElementL10n.tr("Untranslated", "authentication_server_info_matrix_description")
   /// Choose your server to store your data
   public static let authenticationServerInfoTitle = ElementL10n.tr("Untranslated", "authentication_server_info_title")
+  /// All Chats
+  public static let homeScreenAllChats = ElementL10n.tr("Untranslated", "home_screen_all_chats")
   /// Mobile
   public static let loginMobileDevice = ElementL10n.tr("Untranslated", "login_mobile_device")
   /// Tablet
@@ -48,6 +52,16 @@ extension ElementL10n {
   public static let serverSelectionServerUrl = ElementL10n.tr("Untranslated", "server_selection_server_url")
   /// Choose your server
   public static let serverSelectionTitle = ElementL10n.tr("Untranslated", "server_selection_title")
+  /// Looks like you’re using a new device. Verify its you.
+  public static let sessionVerificationBannerMessage = ElementL10n.tr("Untranslated", "session_verification_banner_message")
+  /// Help keep your messages secure
+  public static let sessionVerificationBannerTitle = ElementL10n.tr("Untranslated", "session_verification_banner_title")
+  /// Open Element on one of your other sessions to compare.
+  public static let sessionVerificationScreenEmojisMessage = ElementL10n.tr("Untranslated", "session_verification_screen_emojis_message")
+  /// Lets check if these
+  public static let sessionVerificationScreenEmojisTitle = ElementL10n.tr("Untranslated", "session_verification_screen_emojis_title")
+  /// Appearance
+  public static let settingsAppearance = ElementL10n.tr("Untranslated", "settings_appearance")
   /// Timeline Style
   public static let settingsTimelineStyle = ElementL10n.tr("Untranslated", "settings_timeline_style")
   /// Untranslated