Add ability to customize font size

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.

src/templates/blocks/Awards/AwardsA.js

@@ -7,7 +7,7 @@ const AwardItem = ({ item, language }) => (
   <div>
     <div className="flex justify-between items-center">
       <div className="flex flex-col text-left mr-2">
-        <h6 className="font-semibold">{item.title}</h6>
+        <h6 className="font-semibold text-sm">{item.title}</h6>
         <span className="text-xs">{item.awarder}</span>
       </div>
       {item.date && (