docs(redecryptor): More clarifying

Author: poljar

crates/matrix-sdk/src/event_cache/redecryptor.rs

@@ -692,8 +692,9 @@ impl Redecryptor {
                             // We missed some room keys, we need to report this in case a listener
                             // has and idea which UTDs we should attempt to redecrypt.
                             //
-                            // This would most likely be the timeline. The timeline might attempt
-                            // to redecrypt all UTDs it is showing to the user.
+                            // This would most likely be the timeline from the UI crate. The
+                            // timeline might attempt to redecrypt all UTDs it is showing to the
+                            // user.
                             let Some(cache) = Self::upgrade_event_cache(cache) else {
                                 break false;
                             };