Koenig - Fix sticky (+) button when clicking to select card

no issue
- if the (+) button was visible and you clicked on a card to select it the cursor moved but the (+) button remained because we weren't updating the `selectedRange` property

ghost/admin/lib/koenig-editor/addon/components/koenig-editor.js

@@ -411,6 +411,7 @@ export default Component.extend({
         // already handled it, e.g. on card insertion, manual card selection
         if (this._skipCursorChange) {
             this._skipCursorChange = false;
+            this.set('selectedRange', editor.range);
             return;
         }