Ghost/ghost
Kevin Ansfield a7cf374566 Added "Gifs" card to the editor
refs https://github.com/TryGhost/Team/issues/1225

When inserted opens a searchable gif selector, creating an image card when a gif is chosen.

Includes keyboard navigation once open:
- `Tab`/`Shift+Tab` cycles highlighted gif through search result order
- `Up` / `Down` / `Left` / `Right` moves highlight in the respective direction
- `Enter` inserts highlighted gif

For the gifs card to be activated it's necessary to add a Tenor API key (obtained freely from https://tenor.com/gifapi) via your config.production.json file:

```
  ...
  "tenor": {
    "publicReadOnlyApiKey": "YOUR_KEY"
  }
}
```
2021-12-01 12:19:10 +00:00
..
admin Added "Gifs" card to the editor 2021-12-01 12:19:10 +00:00