Fix visibility of navigation bar when searching the forwarding screen. (#1357)

* Fix visibility of navigation bar when searching the forwarding screen.

- Update Introspect and replace deprecated calls with new ones.
- Remove obsoleted colours from DesignKit.

ElementX/Sources/Screens/Authentication/ServerConfirmationScreen/View/ServerConfirmationScreen.swift

@@ -27,8 +27,7 @@ struct ServerConfirmationScreen: View {
         }
         .background()
         .environment(\.backgroundStyle, AnyShapeStyle(Color.compound.bgCanvasDefault))
-        .introspectViewController { viewController in
-            guard let window = viewController.view.window else { return }
+        .introspect(.window, on: .iOS(.v16)) { window in
             context.send(viewAction: .updateWindow(window))
         }
     }

ElementX/Sources/Screens/Authentication/SoftLogoutScreen/View/SoftLogoutScreen.swift

@@ -49,8 +49,7 @@ struct SoftLogoutScreen: View {
         }
         .background(Color.compound.bgCanvasDefault.ignoresSafeArea())
         .alert(item: $context.alertInfo)
-        .introspectViewController { viewController in
-            guard let window = viewController.view.window else { return }
+        .introspect(.window, on: .iOS(.v16)) { window in
             context.send(viewAction: .updateWindow(window))
         }
     }

ElementX/Sources/Screens/HomeScreen/View/HomeScreen.swift

@@ -17,6 +17,7 @@
 import Combine
 import Compound
 import SwiftUI
+import SwiftUIIntrospect
 
 struct HomeScreen: View {
     enum Constants {
@@ -69,7 +70,7 @@ struct HomeScreen: View {
                 .disableAutocorrection(true)
             }
         }
-        .introspectScrollView { scrollView in
+        .introspect(.scrollView, on: .iOS(.v16)) { scrollView in
             guard scrollView != scrollViewAdapter.scrollView else { return }
             scrollViewAdapter.scrollView = scrollView
         }

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

@@ -30,9 +30,7 @@ struct InviteUsersScreen: View {
             .disableInteractiveDismissOnSearch()
             .dismissSearchOnDisappear()
             .searchable(text: $context.searchQuery, placement: .navigationBarDrawer(displayMode: .always), prompt: L10n.commonSearchForSomeone)
-            .introspectSearchController { searchViewController in
-                searchViewController.hidesNavigationBarDuringPresentation = false
-            }
+            .searchableConfiguration(hidesNavigationBar: false)
             .compoundSearchField()
             .alert(item: $context.alertInfo)
             .background(ViewFrameReader(frame: $frame))

ElementX/Sources/Screens/MessageForwardingScreen/View/MessageForwardingScreen.swift

@@ -46,6 +46,7 @@ struct MessageForwardingScreen: View {
             }
         }
         .searchable(text: $context.searchQuery, placement: .navigationBarDrawer(displayMode: .always))
+        .searchableConfiguration(hidesNavigationBar: false)
         .compoundSearchField()
         .disableAutocorrection(true)
     }

ElementX/Sources/Screens/RoomScreen/View/RoomHeaderView.swift

@@ -18,8 +18,6 @@ import Combine
 import Foundation
 import SwiftUI
 
-import Introspect
-
 struct RoomHeaderView: View {
     @ObservedObject var context: RoomScreenViewModel.Context