Method set_first_screen

src/MainProgram.cpp:584–587

}

void MainProgram::set_first_screen(std::unique_ptr<Screen> firstScreen) {
    set_screen([&](std::unique_ptr<Screen>){ return std::move(firstScreen); });
    run_new_screen_func();
}

void MainProgram::run_new_screen_func() {
    if(newScreenFunc) {