Restrict value based on min(x,y) and max(x,y)

I think it would be useful if the values were limited by min and max.
Currently, if I set maxX to 5, and when FlSpot(6, 4) exists, the spot would be drawn right after 5.

I'm new to this package, so if my understanding of this package is not enough, please tell me your suggestions.

Thank you!

Start by tracing how maxX and min/max bounds are applied when rendering FlSpot values. Check the chart behavior with FlSpot(6, 4) while maxX is 5, then define completion as out-of-range values being restricted to the requested bounds and verify the behavior with chart tests.

Written by the indexing model from the issue text.