Add theming support, and support for other top level configuration to swiftui views with VectorHostingViewController, VectorContentModifier. Add VisibilityModifier. Move from List to VStack.

Riot/Modules/Room/NotificationSettings/SwiftUI/VectorForm.swift

@@ -1,47 +0,0 @@
-// 
-// Copyright 2021 New Vector Ltd
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//
-
-import SwiftUI
-
-@available(iOS 13.0, *)
-struct VectorForm<Content: View>: View {
-    
-    @Environment(\.theme) var theme: Theme
-    var content: () -> Content
-    
-    var body: some View {
-        List(content: content)
-        .listRowBackground(Color(theme.backgroundColor))
-        .listStyle(GroupedListStyle())
-        .onAppear {
-            UITableView.appearance().backgroundColor = theme.baseColor
-            UINavigationBar.appearance().barTintColor = theme.baseColor
-            UINavigationBar.appearance().titleTextAttributes = [.foregroundColor: theme.textPrimaryColor]
-            UINavigationBar.appearance().isTranslucent = false
-            UINavigationBar.appearance().setBackgroundImage(UIImage(), for: UIBarMetrics.default)
-            UINavigationBar.appearance().shadowImage = UIImage()
-        }
-    }
-}
-
-@available(iOS 13.0, *)
-struct VectorForm_Previews: PreviewProvider {
-    static var previews: some View {
-        VectorForm {
-            Text("Item 1")
-        }
-    }
-}