fixup: #1809's ClientState path is char_select in this fork

`Login notices show after the loading screen (#1809)` cherry-picked with no
conflict and still did not build: it refers to `crate::client_state::ClientState`,
the module upstream renamed `char_select` to in a commit this fork has not taken.
A clean apply is not a compiling one — the 3-way merge has no way to know a path
moved on the other side.

One line, no behaviour change.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SgstFWtn1RxEJ5kVrpgYwn

crates/benilla-app/src/ui_action/mod.rs

@@ -252,7 +252,7 @@ impl Plugin for UiActionPlugin {
                 ),
             )
             .add_systems(
-                OnExit(crate::client_state::ClientState::InWorld),
+                OnExit(crate::char_select::ClientState::InWorld),
                 drop_held_lines,
             );
     }