Generate ARIA props

For now, they are all given the `String` type. After spot checking a few
on MDN, that is mostly accurate, even for seemingly numeric values such
`aria-valuemin`:
https://developer.mozilla.org/en-US/docs/Web/API/Element/ariaValueMin#value

NOTE: Despite React using `camelCase` for most props, ARIA props are
indeed `kebab-case`:
- https://react.dev/learn/writing-markup-with-jsx#3-camelcase-salls-most-of-the-things:~:text=the%20browser%20console.-,Pitfall,-For%20historical%20reasons
- https://legacy.reactjs.org/docs/accessibility.html#wai-aria

This could be improved with the following type definitions, but we’ll
leave this to the implementing developer now to check support in the
browser:
https://use-form.netlify.app/interfaces/_node_modules__types_react_index_d_.react.ariaattributes

codegen/html.js

@@ -1,4 +1,4 @@
-const { props, voids, types, typesByElement, reserved } = require("./consts")
+const { ariaProps, props, voids, types, typesByElement, reserved } = require("./consts")
 
 module.exports = () => ({
   path: "Elmish/HTML/Generated.purs",
@@ -36,6 +36,9 @@ const printRow = (e, elProps) =>
   elProps.length > 0
     ? `
   ( _data :: Object String
+  -- ARIA
+  , ${ariaProps.map(p => `${p} :: String`).join("\n  , ")}
+  -- Props
   , ${elProps.map(p => `${p} :: ${propType(e, p)}`).join("\n  , ")}
   )`
     : "()"