Screenshot tests (#130)

* #9 Add snapshot testing library

* #9 Create script to boot test simulators

* #9 Create the UI test plan

* #9 Create shared schemes for test targets

* #9 Disable split view for UI tests

* #9 Fix fastlane dependencies

* #9 Add snapshot testing to the application

* #9 assert screenshots

* #9 fix swipe gestures on iPad

* #9 Fix accessing items in session verification screen

* #9 Workaround for flaky unit test

* #9 Specify scheme for alpha build

* #9 Add reference screenshots

* Update python script path and check assets for png check

* Update script path

* Use static timezone for simulator time

* Fix build after SwiftFormat

* Add changelog

* Upload failed screenshots artifact

* Always upload artifacts

* Update boot simulator script

* Update simulator overridden time

* Install pytz before tests

* Get time from Ruby script

* Disable SwiftUI animation when running UI tests

* Update screenshots after animation setting

* Include reference images in the artifact

* Update matching precision

* Update image matching precision & revert artifact content

* Include Xcode result in the artifact

* Update test output directory

* Disable gradient on splash screen for tests

* Tap next button explicitly

* Wait a bit before checking alert

* Wait 1 second

* Run SwiftFormat on project

* Ignore temporary screenshots

* Fix most of the PR remarks

* Fix conflicts

* Bump Python version to 3

* Update reference screenshots for authentication screens

* Update SwiftFormat

* Fix flakey session verification test.

* Update scheme.

Co-authored-by: Doug <douglase@element.io>

ElementX/Sources/Screens/HomeScreen/View/HomeScreen.swift

@@ -64,7 +64,7 @@ struct HomeScreen: View {
             Spacer()
         }
         .transition(.slide)
-        .animation(.default, value: context.viewState.showSessionVerificationBanner)
+        .animation(.elementDefault, value: context.viewState.showSessionVerificationBanner)
         .ignoresSafeArea(.all, edges: .bottom)
         .navigationBarTitleDisplayMode(.inline)
         .toolbar {
@@ -72,11 +72,11 @@ struct HomeScreen: View {
                 Button { context.send(viewAction: .tapUserAvatar) } label: {
                     HStack {
                         userAvatarImage
-                            .animation(.default, value: context.viewState.userAvatar)
+                            .animation(.elementDefault, value: context.viewState.userAvatar)
                             .transition(.opacity)
 
                         userDisplayNameView
-                            .animation(.default, value: context.viewState.userDisplayName)
+                            .animation(.elementDefault, value: context.viewState.userDisplayName)
                             .transition(.opacity)
                     }
                 }
@@ -147,7 +147,7 @@ struct RoomCell: View {
                     }
                 }
             }
-            .animation(.default, value: room)
+            .animation(.elementDefault, value: room)
             .frame(minHeight: 60.0)
             .task {
                 context.send(viewAction: .loadRoomData(roomIdentifier: room.id))