Update to Webpack 5 (fixes crypto error on build) (#738)

* Updating react-number-editor dependency from stale named branch

* Remove references to deprecated react-addons-perf package

* Issue #25 Webpack updated to current version, many
dependencies updated, Babel & Webpack configs updated.
Add dev & prod Dockerfiles and update README with Docker instructions
Created webpack.common.js.
Coriolis-data now specified as github dependency

* Bump bugfix versions of react & react-dom only

* Workbox dependency upgrade for webpack 5 compat

* Stab at upgrading workbox dep
Far more fatal webpack errors :(

* Automate reinstall/rebuild with npm script

* Working build again w updated deps
Disabled/commented out all bugsnag references
Added production-like Docker build for troubleshooting issues that don't
 appear in dev server

* Remove deprecated @babel/polyfill import & dependency

* Fix to service worker to v5 of workbox
and align with webpack 5 plugin

* Disabling recent round of polyfills. Don't think
they're necessary.

* Whitespace in package.json

* Add Buffer as Webpack plugin. Fix indenting.
Fix deprecated call to Buffer.

* Remove bugsnag and deprecated babel code that was
 commented out, per convo with Felix

---------

Co-authored-by: Sam Clayton <sam@goranku.com>

src/.htaccess

@@ -214,7 +214,7 @@ Options -MultiViews
     #       </Files>
 
     AddType application/x-web-app-manifest+json         webapp
-    AddType text/cache-manifest                         appcache manifest
+    # AddType text/cache-manifest                         appcache manifest
 
   # Media files
     AddType audio/mp4                                   f4a f4b m4a