gngngn call function rename

src/main/scala/backend/Pokemon/Trainer.scala

@@ -7,5 +7,5 @@ class Trainer(val name: String, var listPokemon: List[Pokemon], var indexPrimary
         this.listPokemon.lift(this.indexPrimaryPokemon)
 
     def changePrimaryPokemon(index: Int): Unit =
-        assert(0 <= index && index < this.getNumberPokemon)
+        assert(0 <= index && index < this.numberPokemon)
         this.indexPrimaryPokemon = index