Expand "Value Area" Footprint Settings to include VAL, VAH, and POC line styles

Currently, under the Value Area dropdown, the only available options are a toggle checkbox and a single Color picker (which just shades the Value Area background).

To make this fully functional, please expand the Value Area settings block to include:

• Individual toggle checkboxes to show/hide the VAL, VAH, and POC lines.

• Line style customization for each (Color, Line Width, and Line Style such as Solid/Dashed/Dotted), identical to what is available in the standard Volume Profile indicator settings.