Display <unknown> for unknown room history visibility (#397)

src/windows/room/mod.rs

@@ -591,7 +591,8 @@ impl RoomState {
                 let msg = match field {
                     RoomField::History => {
                         let visibility = room.history_visibility();
-                        format!("Room history visibility: {visibility:?}")
+                        let visibility = visibility.as_ref().map(|v| v.as_str());
+                        format!("Room history visibility: {}", visibility.unwrap_or("<unknown>"))
                     },
                     RoomField::Id => {
                         let id = room.room_id();

src/worker.rs

@@ -21,12 +21,12 @@ use tracing::{error, warn};
 use url::Url;
 
 use matrix_sdk::{
+    authentication::matrix::MatrixSession,
     config::{RequestConfig, SyncSettings},
     deserialized_responses::DisplayName,
     encryption::verification::{SasVerification, Verification},
     encryption::{BackupDownloadStrategy, EncryptionSettings},
     event_handler::Ctx,
-    authentication::matrix::MatrixSession,
     reqwest,
     room::{Messages, MessagesOptions, Room as MatrixRoom, RoomMember},
     ruma::{