custom oled sync and timeout for asymmetical oled config

config.h

#define SPLIT_POINTING_ENABLE
#define POINTING_DEVICE_RIGHT
#undef SPLIT_OLED_ENABLE
#define OLED_TIMEOUT 0

#define SPLIT_ACTIVITY_ENABLE

oled_sync.c

bool is_oled_enabled = true;

bool oled_task_user(void) {
    if (!is_oled_enabled) {
        oled_off();
        return false;
    } else  {
        oled_on();
    }
    // rest of code
    return false;
}

void housekeeping_task_user(void) {
    is_oled_enabled = (bool)(last_input_activity_elapsed()) < 60000);
}