I probably wouldn't be attracted by the tooth gap, but it wouldn't be a deal breaker. Tooth gaps can be very cute/adorable. Also never stop smiling, a smile often makes people more attractive and approachable.
Yes, I wouldn't not date a girl just because of a slight gap in those teeth, that stuff happens and it's completely normal. I'm sure you can find a lot of people with the same thing. If a guy wouldn't date you because you have a gap in your teeth, he doesn't deserve you.