hive-matrix-mcp: leave the typing extension off in sliding sync

hive-matrix-mcp/src/sliding.rs

@@ -81,6 +81,10 @@ where
         .sliding_sync("hive-matrix")?
         .version(Version::Native)
         .with_all_extensions()
+        // Typing notices are never read and fire constantly in a busy room.
+        // After `with_all_extensions`: "without" only resets the setting to
+        // unset, and that call would fill an unset one back in.
+        .without_typing_extension()
         .add_list(list)
         .build()
         .await?;