Added an ability to customize font sizes. This is set at a new section in the settings.
The controler for this sets a number of css variables which are used in css rules that
override tailwind's text-<size> to use the font size and line spacing contained in the
variable. The control itself is a simple logarithmic slider that controls a "scale
factor" by which all the text sizes in a resume are scaled by.
Amruth Pillai
Anuraag Gupta
Ryan Polley
Rob Gries