Options ui (#222)

* wip

* Commenting stuff to keep the build happy

* Revealing sections

* Custom select elements & more form work

* Range input styles

* Text fields with inputs do the right thing

* Safari & Firefox fixes

* Large compress select

* oops

* MozJPEG options updated

* OptPNG options

* These asserts weren't true

* Generic options

* WebP options

* Hiding "edit" when "original image"

* Download icon

* Copy setting button - still not happy with this

* Progress indicator

* Loading icon enter/exit anim

* Preventing controls going under options

* Ahh so that's what was causing scrolling

* Ahh so that's what was causing outlines

* Simplifying range styles and fixing cross-browser

* Processing custom element styles

* Get precision from step by default

* I don't know how or when this happened.

* Don't need that many steps

* Avoid having an element that covers the pinch zoom

* Preventing overlap with zoom controls

* Prevent ts warning

* Fixing spinner position

* Simplifying FileSize

webpack.config.js

@@ -23,7 +23,8 @@ module.exports = function (_, env) {
   const nodeModules = path.join(__dirname, 'node_modules');
   const componentStyleDirs = [
     path.join(__dirname, 'src/components'),
-    path.join(__dirname, 'src/codecs')
+    path.join(__dirname, 'src/codecs'),
+    path.join(__dirname, 'src/custom-els'),
   ];
 
   return {