The search should navigate on enter

[TomasEkeli]

When pressing enter in the search field if the term has a hit we should navigate to it.

Observed behaviour:

• go to dolittle.io
• Type in "Event Horizon" (do not click the drop-down)
• press enter
• nothing happens

Expected behaviour: ...

• press enter
• user should navigate to the event horizon url

┆Issue is synchronized with this Asana task

[joelhoisko]

It shows now the searched pages, hopefully that's good enough.