no issue
- copy Spirit styles over (eventually these will live in an addon)
- update `ember-cli-build` to output a separate CSS file for Spirit
- update `asset-delivery` addon to output Spirit CSS link
- add `{{kg-style}}` helper for Spirit class names
- update `{{koenig-card}}` and the `{{koenig-card-markdown/html}}` components to use Spirit class names and markup
- replace markdown icon with new version from Spirit
refs https://github.com/TryGhost/Ghost/issues/9311
- use the `{{inline-svg}}` helper instead of having SVGs inlined manually in the component template
- rename the koenig icons directory
- add the koenig icons directory to the list of locations used by `{{inline-svg}}`
