closes https://github.com/TryGhost/Team/issues/411
- adds "Create snippet" icon to the editor toolbar
- uses the same link input component design for specifying snippet titles
- snippets are loaded in the background when the editor is accessed
- snippets are listed at the bottom of the card menus of the + and / menus
- clicking a snippet inserts the snippet's contents in place of the current blank section
refs https://github.com/TryGhost/Ghost/issues/9724
- add `registerComponent` hook to cards so that `{{koenig-editor}}` can fetch properties from card components directly
- add word count and reading time utilities
- add throttled word count update routine to `{{koenig-editor}}` that walks all sections and counts text words or fetches word/image counts from card components
- add `wordCountDidChange` hook to `{{koenig-editor}}` so that word count + reading time can be exposed
- modify editor controller to update it's own word count property when koenig triggers it's action
- modified the editor template to show reading time + word count next to the post status
refs https://github.com/TryGhost/Ghost/issues/9623
requires https://github.com/TryGhost/Ghost/pull/9666
- `{{koenig-card-embed}}`
- URL input
- perform oembed lookup & fetch on <kbd>Enter</kbd>
- remove card if enter pressed with empty URL
- show error message on server error
- "retry" returns to input bar
- "paste as link" removes card and outputs link
- "X" removes card
- force embedded <script> tags to run
- wrap embed html with `.koenig-embed-{video,photo,rich}` class
- add embed cards to the (+) and /-menus
- "section" support in the card menus
- refactor to use single card menu map and content component for both menus
- update /-menu keyboard movement to handle sections
- add parameter support to /-menu commands
- `/embed {url}` will insert embed card and automatically fetch oembed for supplied url
no issue
- allows specifying Koenig-specific card options via `createComponentCard`
- respect `hasEditMode` and `selectAfterInsert` options when inserting cards via the (+) and / menus
- do not select divider card after insertion
refs https://github.com/TryGhost/Ghost/issues/9311
- use a similar approach as used in `ember-mobiledoc-editor` to render a div into the editor canvas then use Ember's `{{-in-element}}` helper as a wormhole to render an ember component card into the new div
- adds a `createComponentCard` util for setting up the necessary rendering boilerplate for Ember component cards
