Security and privacy part 2 (#3637)

* handling the history visibility flag

* better logic to handle visibility

* better handling of the visibility options state

* added some copies, and the public room directory

visibility state

* completed the UI

added also the preview tests

* improved the handling of the directory visibility

* added the space users case

and improved handling of the access -> vsibility reaction. Also added a simple error handling for the public directory toggle

* added the edit room address view

but is missing its full implementation

* implement the UI for the edit room address screen

* implemented error checking

when editing the address

* updated preview tests and improved code

* typo fix

* Fix various issues after rebasing.

* Fix build errors and broken snapshot tests

* Adopt latest room privacy and canonical alias setting APIs

* Add support for creating and editing the room's alias.

* Add support for saving room privacy setting changes.

* Fix room alias screen snapshot tests following recent changes.

---------

Co-authored-by: Stefan Ceriu <stefanc@matrix.org>

ElementX/Sources/Screens/EditRoomAddressScreen/EditRoomAddressScreenModels.swift

@@ -0,0 +1,35 @@
+//
+// Copyright 2022-2024 New Vector Ltd.
+//
+// SPDX-License-Identifier: AGPL-3.0-only
+// Please see LICENSE in the repository root for full details.
+//
+
+import Foundation
+
+enum EditRoomAddressScreenViewModelAction {
+    case dismiss
+}
+
+struct EditRoomAddressScreenViewState: BindableState {
+    let serverName: String
+    var currentAliasLocalPart: String?
+    var aliasErrors: Set<EditRoomAddressErrorState> = []
+    
+    var canSave: Bool {
+        currentAliasLocalPart != bindings.desiredAliasLocalPart &&
+            aliasErrors.isEmpty &&
+            !bindings.desiredAliasLocalPart.isEmpty
+    }
+    
+    var bindings: EditRoomAddressScreenViewStateBindings
+}
+
+struct EditRoomAddressScreenViewStateBindings {
+    var desiredAliasLocalPart: String
+}
+
+enum EditRoomAddressScreenViewAction {
+    case save
+    case cancel
+}