fix(HarassCalculator) Travel time UX now makes sense. Fixed divide by zero errors

Model/TravelTime.cs

@@ -0,0 +1,15 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace Model;
+
+public class TravelTime
+{
+    public int Index { get; set; } = 0;
+    public int Value { get; set; } = 0;
+
+    public TravelTime(int index, int value)
+    {
+        Index = index;
+        Value = value;
+    }
+}