[Version 6.0.0] Improves form style generation using config map. Small

refactors from stylelint. Prevents iOSMobile util var from running
unless in a browser environment.

Author: george

app/docs/download.md

@@ -7,17 +7,17 @@ The quickest way to use Undernet is to link the bundled js and minified css usin
 ```html
 <link
   rel="stylesheet"
-  href="https://cdn.jsdelivr.net/npm/undernet@5.3.0/dist/undernet.min.css"
-  integrity="sha256-y3bpJ0RvsBvegMpyXXW2slORgb/0leV7/LTAFbcusMQ="
+  href="https://cdn.jsdelivr.net/npm/undernet@6.0.0/dist/undernet.min.css"
+  integrity="sha256-CCXHgVlt68r/j/PKF3UN+LRGsKMI1Xlsvi2O2zjRupA="
   crossorigin="anonymous"
 />
 ```
 
 ```html
 <script
   type="text/javascript"
-  src="https://cdn.jsdelivr.net/npm/undernet@5.3.0/dist/undernet.bundle.min.js"
-  integrity="sha256-XT5OiIsPZUyS6t1Wdn/Kj7Du459TAMpLf8j3R8FFq50="
+  src="https://cdn.jsdelivr.net/npm/undernet@6.0.0/dist/undernet.bundle.min.js"
+  integrity="sha256-/7qzKFwnWrXFElITB8gG0RLFvunoxxi0wDfyLfDTpgo="
   crossorigin="anonymous"
 ></script>
 <script type="text/javascript">

dist/undernet.css.zip

@@ -1,6 +1,6 @@
 {
   "name": "undernet",
-  "version": "5.3.0",
+  "version": "6.0.0",
   "homepage": "https://undernet.io",
   "description": "A modular, configuration-first front-end framework. No strings.",
   "author": "George Treviranus",