fix: add missing closing brace in handle_command_mode

Co-authored-by: aider (deepseek/deepseek-coder) <aider@aider.chat>

tui.c

@@ -762,6 +762,7 @@ static bool handle_command_mode(void) {
                     action.data.load_project.filename[sizeof(action.data.load_project.filename) - 1] = '\0';
                     g_dispatch(action);
                 }
+            }
             
             nodelay(stdscr, prev_nodelay);
             return false;