The Great Webpack Update.

* Update to version 4 of webpack.
* For that matter, update *every dependency* to the latest available version.
* Remove the babel build target for Edge, as it doesn't seem to be necessary with webpack 4 and tenser.
* Add support for optional chaining and nullish coalescing via Babel transformations.
* Update the clips domain version to work better. Or at all, really.
* Remove unused code from i18n.
* Remove the last `<style>` from vue component files. They don't work that way now anyways.
* Fix a bug in Raven's report handler.
* Fix a bug with the menu button in browsers that don't understand `:scope` within `querySelector()`.

webpack.web.dev.js

@@ -9,6 +9,7 @@ const webpack = require('webpack');
 /* global module */
 
 module.exports = merge(common, {
+	mode: 'development',
 	devtool: 'inline-source-map',
 
 	plugins: [
@@ -39,7 +40,7 @@ module.exports = merge(common, {
 
 		proxy: {
 			'**': {
-				target: 'http://cdn.frankerfacez.com/',
+				target: 'https://cdn.frankerfacez.com/',
 				changeOrigin: true
 			}
 		},
@@ -63,6 +64,7 @@ module.exports = merge(common, {
 	output: {
 		publicPath: '//localhost:8000/script/',
 		filename: '[name].js',
-		jsonpFunction: 'ffzWebpackJsonp'
+		jsonpFunction: 'ffzWebpackJsonp',
+		crossOriginLoading: 'anonymous'
 	}
 })