Copy local-only status from replied-to post

Closes #280

Tusker/Models/Draft.swift

@@ -177,6 +177,7 @@ extension MastodonController {
         var acctsToMention = [String]()
         
         var visibility = inReplyToID != nil ? Preferences.shared.defaultReplyVisibility.resolved : Preferences.shared.defaultPostVisibility
+        var localOnly = false
         var contentWarning = ""
         
         if let inReplyToID = inReplyToID,
@@ -184,6 +185,7 @@ extension MastodonController {
             acctsToMention.append(inReplyTo.account.acct)
             acctsToMention.append(contentsOf: inReplyTo.mentions.map(\.acct))
             visibility = min(visibility, inReplyTo.visibility)
+            localOnly = instanceFeatures.localOnlyPosts && inReplyTo.localOnly
             
             if !inReplyTo.spoilerText.isEmpty {
                 switch Preferences.shared.contentWarningCopyMode {
@@ -213,6 +215,7 @@ extension MastodonController {
         draft.text = acctsToMention.map { "@\($0) " }.joined()
         draft.initialText = draft.text
         draft.visibility = visibility
+        draft.localOnly = localOnly
         draft.contentWarning = contentWarning
         draft.contentWarningEnabled = !contentWarning.isEmpty
         

Tusker/Screens/Compose/ComposeView.swift

@@ -231,6 +231,7 @@ struct ComposeView: View {
         } label: {
             Text("Post")
         }
+        .keyboardShortcut(.return, modifiers: .command)
         .disabled(!postButtonEnabled)
     }