feat(tui): scroll long names in every list and page through popups and chat

The sideways keys the results had (h/l, arrows, 0 and $) now scroll a
transfer's file name and a query too, each list on its own. The browse tree
and the room list take Home/End, PgUp/PgDn and the vim jumps like the main
lists, and a chat log, room or private, pages back through its history and
holds its place while new messages arrive; what arrives meanwhile counts as
unread until the reader returns to the end.

soulseek-rs/src/models/mod.rs

@@ -5,7 +5,7 @@ mod rooms;
 mod settings;
 
 pub use app_state::{
-    AppState, ChatMessage, CommandBarMode, DownloadEntry, FocusedPane,
+    AppState, ChatMessage, CommandBarMode, DownloadEntry, FocusedPane, LogView,
     MessageDirection, PaneLayout, SearchEntry, SearchStatus,
 };
 pub use browse::{