refresh expandable picker display text when value is clamped

Issue: BHV-14905
Enyo-DCO-1.1-Signed-off-by: Ryan Duffy (ryan.duffy@lge.com)
correct logic for hiding IntegerPicker arrows

Hide the arrows when the step value would cause the next value to be out
of range instead of doing an equality check against min and max.

Issue: BHV-14905
Enyo-DCO-1.1-Signed-off-by: Ryan Duffy (ryan.duffy@lge.com)