add more options to default reply visibility setting (#4568)

This adds `direct` and `match_default_post_visibility` as options to the
default reply visibility setting. `match_default_post_visibility` will
be the default for new accounts.

closes https://github.com/tuskyapp/Tusky/issues/4555

<img
src="https://github.com/user-attachments/assets/b256ff32-cd49-4274-903b-96da96451e0e"
width="320"/>

app/src/main/java/com/keylesspalace/tusky/service/SendStatusService.kt

@@ -393,7 +393,7 @@ class SendStatusService : Service() {
             content = status.text,
             contentWarning = status.warningText,
             sensitive = status.sensitive,
-            visibility = Status.Visibility.byString(status.visibility),
+            visibility = Status.Visibility.fromStringValue(status.visibility),
             mediaUris = status.media.map { it.uri },
             mediaDescriptions = status.media.map { it.description },
             mediaFocus = status.media.map { it.focus },