Replace searchable modifiers with a custom implementation using UISearchController. (#2209)

Unfortunately the introspection became unreliable from iOS 17.1 onwards.

* Replace disableInteractiveDismissOnSearch and dismissSearchOnDisappear.

These can be handled within our searchController implementation now.

* Fix preview snapshots.

Weirdly, the search field is bigger in these, although it hasn't changed in the UI tests or the app itself.

ElementX/Sources/Screens/InviteUsersScreen/View/InviteUsersScreen.swift

@@ -31,10 +31,10 @@ struct InviteUsersScreen: View {
             .navigationTitle(L10n.screenCreateRoomAddPeopleTitle)
             .navigationBarTitleDisplayMode(.inline)
             .toolbar { toolbar }
-            .disableInteractiveDismissOnSearch()
-            .dismissSearchOnDisappear()
-            .searchable(text: $context.searchQuery, placement: .navigationBarDrawer(displayMode: .always), prompt: L10n.commonSearchForSomeone)
-            .searchableConfiguration(hidesNavigationBar: false)
+            .searchController(query: $context.searchQuery,
+                              placeholder: L10n.commonSearchForSomeone,
+                              showsCancelButton: false,
+                              disablesInteractiveDismiss: true)
             .compoundSearchField()
             .alert(item: $context.alertInfo)
     }