Remove bug from date-input.hbs (#963)

Author: lodewiges

app/components/input/date-input.hbs

@@ -12,7 +12,7 @@
   <input
     {{pikaday
       value=@dateValue
-      onSelect=onPikadaySelection
+      onSelect=(action 'onPikadaySelection')
       format=this.pikadayFormat
       yearRange=@yearRange
       i18n=this.pikadayI18n
@@ -24,4 +24,4 @@
     autocomplete='off'
     class={{@inputClass}}
   />
-{{/if}}
+{{/if}}