UI test cleanup (#2598)

* Stop running the UI tests on the double localized pseudolanguage

* Fix UI tests signalling comms problem because the json key ordering wasn't defined and the messages wouldn't match.

* Remove UI tests that are now the same as preview tests (i.e. non flow based, only screen based), fixed the rest so they run on iOS 17.2, the iPhone 15 and iPad 10th gen simulators.

* Remove unnecessary gitignore instructions, change UI test snapshot naming convention to be more similar to the unit test ones

* Enable derived data and spm checkout caching for UI tests

* Switch UI tests back to the perf-only runner, moved the integration tests to the iPhone 15 Pro simulator.

* Address PR comments

ElementX/Sources/UITests/UITestsScreenIdentifier.swift

@@ -17,75 +17,42 @@
 import Foundation
 
 enum UITestsScreenIdentifier: String {
-    case login
-    case serverConfirmationLogin
-    case serverConfirmationRegister
-    case serverSelection
-    case serverSelectionNonModal
-    case authenticationFlow
-    case softLogout
-    case waitlist
-    case analyticsPrompt
-    case analyticsSettingsScreen
-    case templateScreen
     case appLockFlow
     case appLockFlowAlternateWindow
     case appLockFlowDisabled
     case appLockFlowDisabledAlternateWindow
     case appLockSetupFlow
-    case appLockSetupFlowUnlock
     case appLockSetupFlowMandatory
-    case home
-    case settings
+    case appLockSetupFlowUnlock
+    case authenticationFlow
     case bugReport
-    case bugReportWithScreenshot
-    case notificationSettingsScreen
-    case notificationSettingsScreenMismatchConfiguration
-    case authenticationStartScreen
+    case createPoll
+    case createRoom
+    case createRoomNoUsers
+    case invites
+    case login
+    case roomLayoutBottom
+    case roomLayoutMiddle
+    case roomLayoutTop
+    case roomMembersListScreenPendingInvites
     case roomPlainNoAvatar
-    case roomEncryptedWithAvatar
+    case roomRolesAndPermissionsFlow
     case roomSmallTimeline
-    case roomSmallTimelineWithReactions
-    case roomSmallTimelineWithReadReceipts
     case roomSmallTimelineIncomingAndSmallPagination
     case roomSmallTimelineLargePagination
-    case roomLayoutTop
-    case roomLayoutMiddle
-    case roomLayoutBottom
+    case roomSmallTimelineWithReactions
+    case roomSmallTimelineWithReadReceipts
     case roomWithDisclosedPolls
-    case roomWithUndisclosedPolls
     case roomWithOutgoingPolls
+    case roomWithUndisclosedPolls
+    case serverSelection
     case sessionVerification
+    case startChat
+    case startChatWithSearchResults
+    case templateScreen
     case userSessionScreen
     case userSessionScreenReply
     case userSessionScreenRTE
-    case roomDetailsScreen
-    case roomDetailsScreenWithRoomAvatar
-    case roomDetailsScreenWithEmptyTopic
-    case roomDetailsScreenWithInvite
-    case roomDetailsScreenDmDetails
-    case roomEditDetails
-    case roomEditDetailsReadOnly
-    case roomMembersListScreen
-    case roomMembersListScreenPendingInvites
-    case roomMemberDetailsAccountOwner
-    case roomMemberDetails
-    case roomMemberDetailsIgnoredUser
-    case roomNotificationSettingsDefaultSetting
-    case roomNotificationSettingsCustomSetting
-    case roomRolesAndPermissionsFlow
-    case reportContent
-    case startChat
-    case startChatWithSearchResults
-    case invites
-    case invitesWithBadges
-    case invitesNoInvites
-    case inviteUsers
-    case createRoom
-    case createRoomNoUsers
-    case createPoll
-    case roomPollsHistoryEmptyLoadMore
-    case roomPollsHistoryLoadMore
 }
 
 extension UITestsScreenIdentifier: CustomStringConvertible {