no issue
- followed the migration guide to switch to from lifecycle hooks to single `modify()` method
- https://togithub.com/ember-modifier/ember-modifier/blob/master/MIGRATIONS.md
- forced resolution of `ember-in-viewport@4.0.2` to avoid older version of `ember-modifier` being pulled in through `ember-infinity`
refs a4a4136c2f (commitcomment-79676720)
- `ember-auto-import` does the right thing automatically so manual `app.import` is not necessary and avoids potential pitfalls with multiple copies of react being bundled
- added the `window.*` global attachments after importing so that our async loaded UMD components have access to our bundled React and ReactDOM instances
no issue
- switched from needing to extend from `ReactComponent` to using a `{{react-render}}` modifier
- modifiers are modern idiomatic Ember for handing "did-insert" hooks and associated lifecycle
- moved code from `<ReactMobiledocEditor>` into `<KoenigReactEditor>`
- no need for the extra layering of components and need to remember two places to modify when adding passthrough args/props
