test: Implemented UI snapshot tests

src/handlers/mod.rs

@@ -93,17 +93,7 @@ pub trait KeyEventHandler<'a, 'b, T: Into<Route> + Copy> {
   fn handle_submit(&mut self);
   fn handle_esc(&mut self);
   fn handle_char_key_event(&mut self);
-
-  /// Returns a mutable reference to the application state.
-  ///
-  /// This method is used by the trait-based table handler to modify app state during
-  /// table operations (e.g., navigation stack, loading flags).
   fn app_mut(&mut self) -> &mut App<'b>;
-
-  /// Returns the current navigation route.
-  ///
-  /// This method is used by the trait-based table handler to determine which screen
-  /// or mode is currently active, enabling context-aware event handling.
   fn current_route(&self) -> Route;
 }