Display online translation automatically (if local translation is unsuccessful or even always)

[SerVB]

Sometimes I see "We couldn't find any related dictionary entries" when pressing the "Dictionary" button. Would be great to avoid the need of pressing the "translate with Google" button manually in this case: let it be happen automatically, at least via a setting.

Or maybe it could be simpler: just a setting that will allow to always request online translation automatically. I will definitely enable it.

[SerVB]

Example: