Add support for a textbox using TextAreaScrollable

[SineSwiper]

The string widget, via DrawHandleInputText, isn't large enough to reasonable hold a string larger than 30 characters or so. I rolled my own CustomDrawer for a few settings I had, but it might be more practical to create some sort of DrawHandleInputTextbox method in Dialog_ModSettings.cs.

[UnlimitedHugs]

The best approach is to trim down your label to just a few words, even if they don't fully explain what the setting does. For the explanation, use the description parameter.

If you still need a long label:

• The label will automatically reduce its text size if it does not fit. This gives you two lines of text to work with.
• Use CustomDrawerFullWidth for complete control over handle drawing.