Fix various flakey unit tests (#1783)

* Fix flakey emoji provider tests

* Fix flakey RoomScreenViewModel tests

* Fix flakey HomeScreenViewModel tests

* Fix flakey RoomMemberListScreen tests, problem with bindings getting overriden and deferFulfillment cancellable not getting stored

* Fix flakey RoomNotificationSettingsScreen tests and crashes

* Fix flakey RoomMemberDetailsScreen tests

* Deprecate old `deferFulfillment` and `nextViewState` methods

* Convert more files to the new `deferFulfillment`

* Converted the rest of the tests to the new deferFulfillment

* Removed now unused `nextViewState` and `deferFulfillment`

* Remove automatic retries from unit tests

* Reset analytics flag after running unit tests

* Address PR comments

* Introduce a new `deferFulfillment(publisher, keyPath, transitionValues)` method and use it where appropiate

UnitTests/Sources/InvitesScreenViewModelTests.swift

@@ -56,7 +56,13 @@ class InvitesScreenViewModelTests: XCTestCase {
         }
         setupViewModel(roomSummaries: invites)
         
-        let deferred = deferFulfillment(viewModel.actions.first(), message: "1 action should be published.")
+        let deferred = deferFulfillment(viewModel.actions) { action in
+            switch action {
+            case .openRoom:
+                return true
+            }
+        }
+        
         context.send(viewAction: .accept(.init(roomDetails: details, isUnread: false)))
         let action = try await deferred.fulfill()