Apply non-pure black dark mode to Drafts screen

Tusker/Screens/Compose/ComposeView.swift

@@ -128,7 +128,7 @@ struct ComposeView: View {
                 }
         })
         .sheet(isPresented: $uiState.isShowingDraftsList) {
-            DraftsView(currentDraft: draft, mastodonController: mastodonController)
+            DraftsRepresentable(currentDraft: draft, mastodonController: mastodonController)
         }
         .actionSheet(isPresented: $uiState.isShowingSaveDraftSheet, content: self.saveAndCloseSheet)
         .alert(isPresented: $isShowingPostErrorAlert) {

Tusker/Screens/Compose/DraftsView.swift

@@ -8,6 +8,21 @@
 
 import SwiftUI
 
+@available(iOS, obsoleted: 16.0)
+struct DraftsRepresentable: UIViewControllerRepresentable {
+    typealias UIViewControllerType = UIHostingController<DraftsView>
+    
+    let currentDraft: Draft
+    let mastodonController: MastodonController
+    
+    func makeUIViewController(context: Context) -> UIHostingController<DraftsView> {
+        return UIHostingController(rootView: DraftsView(currentDraft: currentDraft, mastodonController: mastodonController))
+    }
+    
+    func updateUIViewController(_ uiViewController: UIHostingController<DraftsView>, context: Context) {
+    }
+}
+
 struct DraftsView: View {
     let currentDraft: Draft
     // don't pass this in via the environment b/c it crashes on macOS (at least, in Designed for iPad mode) since the environment doesn't get propagated through the modal popup window or something
@@ -49,8 +64,10 @@ struct DraftsView: View {
                         .map { visibleDrafts[$0] }
                         .forEach { draftsManager.remove($0) }
                 }
+                .appGroupedListRowBackground()
             }
             .listStyle(.plain)
+            .appGroupedListBackground(container: DraftsRepresentable.UIViewControllerType.self)
             .navigationTitle(Text("Drafts"))
             .navigationBarTitleDisplayMode(.inline)
             .toolbar {