update depndencies

- add engines targeting dev
- bump webpack
- update-oss-attribution CI
- appease eslint for webpack
- clean up packages
  - move @types to devDependencies
  - moved concurrently to devDependencies
  - remove unused babel

webpack/webpack.common.js

@@ -1,3 +1,5 @@
+/* eslint-disable @typescript-eslint/no-var-requires */
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
 const webpack = require("webpack");
 const path = require('path');
 const CopyPlugin = require('copy-webpack-plugin');
@@ -32,7 +34,6 @@ module.exports = env => ({
     },
     output: {
         path: path.join(__dirname, '../dist/js'),
-        filename: '[name].js'
     },
     optimization: {
         splitChunks: {