no worries, I chipped my tooth at a very young age and have nice teeth now as an adult. it's not your fault, please don't beat yourself up over it. kids have accidents and fall. it's all part of life.
They will assure you I am sure no permanent damage to her next teeth but she will wait for it to come out so whether they will put some protection on it so she eats okay I am not certain, I expect her other teeth will come in okay.Stuff happens , my daughter fell against the corner of a door and this age and has a scar so it could be worse ...