[apps] Graph: when setting default range of a function, take

into account the potential periodicity

apps/shared/interactive_curve_view_range_delegate.cpp

@@ -48,4 +48,8 @@ bool InteractiveCurveViewRangeDelegate::didChangeRange(InteractiveCurveViewRange
   return true;
 }
 
+float InteractiveCurveViewRangeDelegate::interestingXRange() {
+  return 10.0f;
+}
+
 }