No. Next!
1)There's no evidence that your dog is dangerous nor that it has shown any propensity to so being.
2) There's no evidence,or no sufficient evidence, that, even if it had been, in law and evidence, a dangerous dog, you failed to control it [Unnecessary to say that here, in , but legally correct , on the face of it]
3)The other party has brought the mischief on herself.It's patently obvious that dogs get into fights, without either animal being ' a dangerous dog'.She has allowed her dog to be in a public place (it must have been in the street to get to your place, surely), unattended, without it being on a lead.That itself speaks of a negligent approach, for such an animal may cause a road accident .never mind get into fights.